Sexton declared fit by Leinster, resulting in start in new position for Ross Byrne
Leinster have rung 13 changes to their starting XV after last weekend's loss, but retention of Johnny Sexton means a new role for Ross Byrne.
Byrne boots Leinster to derby win, Scarlets edge out Ospreys
Lee Byrne claims Rob Howley tried to humiliate him
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'A free trial': How Jake Kerr curiously went from unwanted Leicester hooker into the thrust of Bristol's Premiership title battle