Leinster extended their remarkable unbeaten run in Champions Cup pool matches to 31 with a hard-fought 22-13 victory over Bayonne at the Stade Jean Dauger, securing top spot in Pool 3 and home advantage through to at least the quarter-finals.
Key moments:
14′ – TRY BAYONNE: Sireli Maqala scores under posts, Joris Segonds converts (Bayonne 7-0 Leinster)
16′ – SUBSTITUTION LEINSTER: Thomas Clarkson replaces Tadhg Furlong (injury)
21′ – PENALTY LEINSTER: Harry Byrne kicks penalty (Bayonne 7-3 Leinster)
23′ – PENALTY BAYONNE: Joris Segonds kicks penalty from 45 metres (Bayonne 10-3 Leinster)
34′ – SUBSTITUTION LEINSTER: Rieko Ioane replaces Robbie Henshaw (injury)
Half-time: Bayonne 10-3 Leinster
42′ – SUBSTITUTION LEINSTER: Sam Prendergast replaces Tommy O’Brien (injury)
46′ – SUBSTITUTION LEINSTER: Dan Sheehan replaces Rónan Kelleher
49′ – YELLOW CARD BAYONNE: Herschel Jantjies sent to sin bin for deliberate knock-on
55′ – SUBSTITUTION LEINSTER: Joe McCarthy replaces RG Snyman
56′ – TRY LEINSTER: Dan Sheehan scores, Harry Byrne converts (Bayonne 10-10 Leinster)
59′ – PENALTY BAYONNE: Joris Segonds kicks penalty from own half (Bayonne 13-10 Leinster)
66′ – SUBSTITUTION LEINSTER: Luke McGrath replaces Jimmy O’Brien (injury)
75′ – TRY LEINSTER: Sam Prendergast scores under posts, Harry Byrne converts (Bayonne 13-17 Leinster)
79′ – TRY LEINSTER: Max Deegan scores in corner, Harry Byrne misses conversion (Bayonne 13-22 Leinster)
Full-time: Bayonne 13-22 Leinster
The four-time European champions trailed for 74 minutes on a rain-soaked afternoon in Basque Country before late tries from Sam Prendergast and Max Deegan secured the win. However, the victory came at a considerable cost, with Tadhg Furlong, Robbie Henshaw, Tommy O’Brien and Jimmy O’Brien all departing with injuries ahead of the Six Nations.
Despite having nothing tangible to play for after losing their opening three pool matches, Bayonne proved formidable opponents at their fortress home, where they remain unbeaten in the Top 14 since April 2024. The French side’s intensity and physicality troubled Leinster throughout, with the visitors struggling to find their usual fluency in the difficult conditions.
Bayonne made their intentions clear from the opening exchanges, dominating the aerial battle and putting Leinster under sustained pressure. The home side’s passionate approach, backed by a raucous crowd of local supporters, set the tone for what would prove a stern test for Leo Cullen’s men.
Leinster suffered an early setback when Ireland tighthead prop Furlong was forced off in the 16th minute with a tight calf, replaced by Thomas Clarkson earlier than anticipated. The change disrupted Leinster’s rhythm, and moments later Bayonne struck for the game’s opening try.
Quick ball from a lineout on halfway allowed wing Yohan Orabe to exploit a gap in the Leinster midfield, with Garry Ringrose caught shooting out of the line. Orabe burst through before feeding centre Sireli Maqala on his inside shoulder, and the Fijian raced under the posts. Out-half Joris Segonds added the conversion to give Bayonne a 7-0 lead after 14 minutes.
Leinster responded through the counter-attacking threat of Joshua Kenny and Jimmy O’Brien, with the latter making an encouraging return from injury. After a brilliant surge from Jimmy O’Brien created pressure in the Bayonne 22, Leinster won a penalty and Harry Byrne reduced the deficit to four points with a simple kick in the 21st minute.
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However, Segonds restored the seven-point cushion just two minutes later with a magnificent penalty from 45 metres after Leinster infringed at a lineout. The French fly-half, the Top 14’s leading points scorer this season, showed his class with a perfectly struck effort.
Leinster thought they had their first try in the 26th minute when Byrne sent a delicate crossfield kick towards Kenny on the left wing, but the ball slipped from the winger’s grasp in the greasy conditions as he attempted to ground it in the corner. A promising opportunity had gone begging.
The visitors came even closer to scoring on 33 minutes when Clarkson crossed the line following excellent work from RG Snyman, whose offload had created the opening. However, referee Luke Pearce consulted the TMO and ruled the prop had committed a double movement, turning what would have been a converted try into a penalty for Bayonne.
The home side defended heroically as half-time approached, with Max Deegan producing a crucial tackle on scrum-half Herschel Jantjies to prevent a second try. Bayonne took a deserved 10-3 lead into the interval, having dominated territory and shown greater composure in the testing conditions.
Leinster emerged for the second half needing to find a spark, but within moments suffered another injury blow when Tommy O’Brien pulled up with an apparent calf problem while chasing the restart kick. The Ireland winger was replaced by Prendergast at full-back, forcing a reshuffle in the Leinster backline.
The turning point arrived in the 49th minute when Jantjies was shown a yellow card for a deliberate knock-on that halted a promising Leinster attack. With the numerical advantage, Leinster finally found their rhythm and struck for the equalising try seven minutes later.
Joe McCarthy’s arrival from the bench added crucial ballast to the lineout, and from the set-piece Leinster executed a beautifully worked strike play. Ringrose took the first pass before Byrne pulled the ball back for Kenny to make the incision. Prendergast then delivered a long pass to Jimmy O’Brien, whose footwork took him past the initial defender before he fed the hard-charging Dan Sheehan. The Ireland hooker showed his trademark pace to burst through and score, with Byrne’s conversion levelling the scores at 10-10.
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Bayonne’s response was immediate. Segonds drilled over a penalty from inside his own half in the 59th minute after Leinster were penalised for offside at the breakdown, restoring the home side’s lead at 13-10. The French outfit continued to defend with tremendous resolve, repelling wave after wave of Leinster attacks.
Leinster thought they had taken the lead for the first time in the 63rd minute when Jimmy O’Brien latched onto Prendergast’s clever grubber kick and touched down in the corner. However, after Byrne had kicked the conversion, the TMO alerted Pearce to a knock-on as O’Brien attempted to ground the ball under pressure. The try was disallowed, much to Leinster’s frustration.
Segonds had the opportunity to extend Bayonne’s advantage in the 68th minute with a penalty from distance after Dan Sheehan was penalised for collapsing a maul, but for the first time all afternoon his effort sailed wide of the posts.
With time running out and Leinster still trailing, Byrne took a calculated risk in the 75th minute. Under no penalty advantage and deep in the Bayonne 22, the fly-half opted for a perfectly weighted chip over the top of the defensive line. The bounce beat full-back Victor Hannoun and sat up perfectly for Prendergast, who gathered stealthily and touched down under the posts. Byrne’s conversion gave Leinster their first lead of the match at 17-13.
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Bayonne’s resistance finally crumbled in the final minute as Leinster secured a bonus point try. After Sheehan capitalised on an overthrown Bayonne lineout deep in the 22, Jamison Gibson-Park whipped the ball wide for Deegan to dive over in the corner. Byrne’s hurried drop-kick conversion attempt missed, but when Segonds kicked the restart directly into touch, the game was over.
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The victory means Leinster have topped their Champions Cup pool for the fourth consecutive season and secured home advantage for the Round of 16 on the first weekend of April, with a home quarter-final also guaranteed should they progress. However, they finished one try short of the bonus point that might have secured a top-two seeding.
“When you turn up away from home and that’s the way the conditions are, you just need to do what you need to do to get the job done,” said Leinster head coach Leo Cullen afterwards. “Credit to the players for doing that. How many teams have won all their games during this period? Teams are dropping at different stages, we’re managing to get wins.”
Cullen acknowledged the difficulty of the challenge, praising Bayonne’s commitment. “They put in a seriously good performance, which meant it was incredibly tough for our guys. If that’s a knockout game and you come away from here and win the game, you’re delighted.”
The Leinster boss confirmed that the injuries to Furlong, Henshaw and the O’Brien brothers appeared to be soft-tissue issues, with a clearer picture expected on Monday. The timing is particularly concerning with Ireland’s Six Nations opener in Paris just 19 days away.
For Bayonne, despite finishing their Champions Cup campaign without a single point from four matches, they can take pride in a performance that troubled one of Europe’s elite sides. The French club showed tremendous passion and defensive resolve, falling just short against opponents who found a way to win when it mattered most.
The result extended Leinster’s winning streak to nine matches across all competitions and maintained their extraordinary record in Champions Cup pool stages. Since their last pool defeat in Toulouse in 2018, they have now won 31 consecutive matches in this phase of the competition.
Scorers:
Bayonne: Try: Maqala (14). Con: Segonds. Pens: Segonds (23, 59).
Leinster: Tries: Sheehan (56), Prendergast (75), Deegan (79). Cons: Byrne (2). Pen: Byrne (21).
Yellow card: Jantjies (Bayonne, 49).
Bayonne: Tiberghien, Spring, Maqala, Tuilagi (Martocq 49), Orabe (Hannoun 72), Segonds, Jantjies, Calles (Tumania 57), Martin (Bosch 51), Tagi (Setiano 51), Johnson, Paulos, Fischer, Iturria (c) (Heguy 46), Lomidze (Ariceta 52).
Leinster: J O’Brien (McGrath 66), T O’Brien (Prendergast 42), Ringrose, Henshaw (Ioane 34), Kenny, Byrne, Gibson-Park, Boyle (Cahir 70), Kelleher (Sheehan 46), Furlong (Clarkson 16), Snyman (McCarthy 55), Ryan, Deegan, van der Flier (Penny 74), Doris (c).
Referee: Luke Pearce (England).