Tries from Jamison Gibson Park and Andrew Porter in the second half, ensured that Leinster would make the Quarter Finals of the Champions Cup, in a entertaining tussle with Ulster at the Aviva Stadium.

Ross Byrne was also a big performer for Leinster as he managed 15 points from the boot to add to Tries from Ryan Baird, Jamison Gibson Park and Andrew Porter.

Ulster did preform well but just lacked a little in the chance creation as they spent a lot of time having to defend against a wave of blue offence, Leinster will host Leicester Tigers in the quarter-finals at the Aviva Stadium.

The game began with the majority of the earthly action played out in the Ulster half, with Leinster starting bright and making some early exchanges, but Ulster would get a chance to get going and did find themselves, a kick in behind saw Hugo Keenan drop the ball, Ulster were awarded a scrum that came to nothing but a Leinster offside gave Ulster have an easy opportunity to get points on the board.

Nathan Doak tapped over for a 3-0 lead, things got a little bit heated between both sets of players after Leinster won a penalty, some hang bags as players had to be separated but Ross Byrne notched the penalty to tie.

Leinster bagged the games opening try in the 19th minute, as Ryan Baird managed to power over, the TMO was needed to check the grounding on the wet conditions, but it was given and Byrne gave them a seven point margin. Five minutes later Byrne kicked over a penalty from distance the lead ten by the 25th minute.

A piece of magic would bring Ulster back into the tie, Billy Burns showed his vision and kicking intelligence with a pinpoint kick out to the right flank where James Hume was waiting and the centre eventually crossed for their opening try, Doak missed the conversion but the scoreboard reading 13-8.

Jack Conan forced his way through the Ulster defence with a great move in the 35th minute and was celebrating their second try, the TMO was again needed to consult grounding and a knock on, it was brought back for a Leinster penalty as they had advantage but Conan had lost possession of the ball before driving forward.

Leinster kept the pressure on immediately after as Ulster were doing everything to keep them out, conceding a host of penalties under pressure Tom O’Toole lucky to not see yellow, Leinster had the advantage and tried to open the Ulster defence but as it came to nothing Byrne sliced three from the tee and we headed for the break the hosts ahead 16-8.

Ulster remained up against it and yet more penalties against them saw James Hume sin-binned, another tap and go left the pressure on but a try would come against the 14 men of Ulster, Robbie Henshaw attempted to pick out Ross Byrne but the past with astray, however Jamison Gibson Park collected the loose ball and raced in under the posts to score, Byrne’s conversion making it 23-8.

Despite being a man down and trailing by 15, Ulster showed their fighting spirit to get their next try minutes later, their maul powered over as Rob Herring touched down and two points from John Cooney put Ulster back into contention behind by eight points.

But after the hour mark Leinster got some more breathing space as Andrew Porter pumped the legs to cross from close range after their forwards had again laid siege to the Ulster line from a penalty, Byrne converted and Ulster had a bigger mountain to climb.

That served as the final score of the game, Ulster had Harry Sherridan sin-binned late on but were unable to work a score to add late drama at the Aviva as Leinster remained untouched in all competitions.