By DECLAN ROONEY

Leinster..............19ptsTries: H Byrne 22, 44; J Osborne 27 Conversions: Frawley 23, 45 Ospreys ............24ptsTries: Cracknell 69, Watkin 73,Thomas 80  Conversions: Thomas 70, 74, 80Penalties: Price 25Set free: Josh Thomas picks up a loose ball on the way to scoring Ospreys’ third tryPICTURE: Huw EvansYOUNGSTER Josh Thomas inspired Ospreys to a stunning comeback victory against Leinster to sign off their PRO14 season by securing a priceless Champions Cup qualification.Olly Cracknell, Owen Watkin and Thomas all scored tries in the final 11 min...