Semi-final was lost in first half - Quins coach Wilson

Antoine Dupont scored two of Toulouse's five first half tries in their victory over Harlequins

Harlequins head coach Danny Wilson says the "damage was done" in the first half as his side were beaten 38-26 by Toulouse in their debut Investec Champions Cup semi-final.

Quins trailed 31-12 at the break before reducing the deficit to five points in the second half and threatening an upset against the five-time winners at Stadium de Toulouse.

Jack Walker's yellow card stunted their progress minutes before Toulouse finally broke Quins' resistance to score their first points of the second half as Juan Cruz Mallia claimed their sixth try of the match.

"We got done at the breakdown and they counter-rucked and turned us over," Wilson told BBC Radio 5 Sports Extra.

"When you go through a lot of phases like we do to break teams down, you are in trouble when your breakdown is not really good.

"The best teams don’t just turn you over, they score off the turnover and that really hurt us.

"Maybe the yellow card was a moment when the momentum went away from us. I can understand the decision by the letter of the law but it was a key moment and they scored immediately to get a cushion."

Toulouse scored five first-half tries and were cruising until Quins hit back through Cadan Murley and Tyrone Green.

Wilson says he is "proud" of his players for mounting a comeback.

"We looked like Quins again [in the second half], sorted our breakdown problems out, got some speed of ball and every time we got into their 22 we looked like we would score," he added.

"It’s the first time the club has ever been in a European semi-final so it was always going to be about learnings.

"Most of the learnings are positive ones. It shows we are on the right course. I’m proud of what we’ve done but a part of you will always look at it and think about what we could have done."

'Lots of work to do' for Leinster meeting

Former England flanker Jack Willis won the Top 14 title with Toulouse last season while victory over Quins moves him and his team-mates one game closer to a league and Champions Cup double this year.

The French side will face Leinster in the final at Tottenham Hotspur Stadium on 25 May, and Willis says Toulouse have "lots of work to do" if they are to add a record-extending sixth star to their jersey.

"It’s amazing to be in the final, I can’t wait for it," Willis said.

"The speed we play at and the way we can score tries is great, we just have to make sure the discipline is better because we gave Quins access through that.

"The guys stayed pretty calm and collected and knew we could work our way back up the field.

"It’ll be a big game against Leinster, and I’m chuffed to be a part of it."

Willis is currently ineligible to add to his 14 Test caps because of a Rugby Football Union (RFU) rule which only allows Premiership players to be picked for England, but the 27-year-old says he is "grateful" to be part of the Toulouse set-up.

"It’s an incredible team and an incredible place to play rugby," added Willis.

"The atmosphere is incredible and even the walk-in [to the stadium], there were people banging on the bus and flares going off. It really gets you going for a game like this."