WATCH - Johnny Sexton's adorable son Luca interrupts post-match interview
Jonathan Sexton steered Leinster to another European semi-final with a 32-17 victory over Wasps this afternoon with another unflappable display but was blushing in a post-match interview after his son Luca decided to steal his limelight.
Fergus McFadden's 73rd-minute try took the sting out of Wasps' second-half comeback as Leinster reached the Champions Cup last four
Most of the damage was done in a dominant first-half display from the hosts, with Robbie Henshaw's late breakaway score making it 22-3 and adding to earlier tries from Isa Nacewa and Jack Conan.
Joey Carbery's attacking instincts from full-back earned him the man-of-the-match award, but former Leinster favourite Jimmy Gopperth sparked a revival from the visitors, converting Christian Wade's try and his own effort on the hour mark.
However, Leinster seized control again in the final quarter and replacement McFadden's seven-pointer sealed his side's trip to France in three weeks' time with either Clermont Auvergne or Toulon, who play on Sunday, providing the opposition.
Apart from Wasps' purple patch in the third quarter, they were second best on the day as the home of Irish rugby claimed the scalp of another highly-rated English team, just a fortnight on from the spoiling of England's expected Grand Slam party.
Jonathan Sexton was a central figure for Leo Cullen's men and was suitably delighted after the game.
As he spoke to BT Sport about targetting Danny Cipriani, his two-year-old son Luca wanted some air time.