Leo Cullen believes that Leinster are benefiting from a 'rejuvenated' Johnny Sexton heading into the Champions Cup knock-out stages.
And skipper Sexton insists that the province can be happy that they did all that they could to secure their place in the last 16 after the nightmare Montpellier walkover.
The Blues scored a whopping 23 tries in six days to secure their place in the last 16 - backing up last Sunday's record 13-try victory over Montpellier with 10 more against Bath at the Rec.
Sexton looked sharp on his first start since Ireland's victory over the All Blacks in mid-November.
He was on board for eight of his province's tries against the Premiership's basement club - including three in four minutes in the third quarter.
"You can see it in him, he's sort of rejuvenated," said Cullen.
“We're the beneficiaries and Ireland as well, to a certain extent. after missing out on the Lions - as hard as that was for him.
"It's phenomenal really, a 36-year-old, but age is definitely just a number in his case.
“His mind is still as sharp as ever. The cross-field kick for Jimmy and even just the awareness of them being a winger down. Lots of good stuff.
“The two Byrnes pushing him on is no harm, too.”
Leinster took 15 minutes to get motoring, needing strong defensive work keeping Bath at bay.
But the hosts lost key back row operators Josh Bayliss and Sam Underhill to head injuries and once Cullen's men hit their stride they were unstoppable again.
Winger Jimmy O'Brien made history as the first Leinster player to score four tries in a European fixture.
The 25-year-old was outstanding in defence and attack - his 16th and 76th minute scores topping and tailing the try-fest.
He was also denied an early score when Jordan Larmour held back Bath centre Max Clark as they contested the loose ball.
"Jimmy scored his four tries but some of his defensive work as well was phenomenal," said Cullen.
