Diack out of Ulster line-up

Robbie Diack has withdrawn from the Ulster team to face the Ospreys today (Liberty Stadium, 6.30pm) after the South African back row aggravated a dead leg suffered in the 18-10 win over Glasgow last weekend.

His position at blindside flanker will be taken by Mike McComish.

ULSTER: J Payne; C Gilroy, D Cave, L Marshall, M Allen; N O’Connor, M Heaney; C Black, R Herring, D Fitzpatrick, J Muller (c), L Stevenson, M McComish, S Doyle, N Williams.