By Simon Hunter
Ulster are in Wales tomorrow as they look to keep alive their hopes of making the Pro12 playoffs.
Les Kiss' men take on Ospreys, who are fourth in the league, one point ahead of the visitors.
It follows a 22-20 defeat away to Munster, and a 24-24 draw at home to Cardiff Blues.
This is the penultimate match for Les Kiss' side, with Leinster at home on Saturday 6 May.
Stuart McCloskey will start in the centre, while Robbie Diack will put on the number 8 jersey.
Speaking on Q Radio and Ulster Rugby's The Breakdown podcast, captain Andrew Trimble is optimistic.
Andrew Trimble and Jacob Stockdale joined Simon for episode 4 of The Breakdown podcast. Have a listen! @UlsterRugbyhttps://t.co/Bv7GKzViiQ
— Q Radio News (@qnewsdesk) April 28, 2017
Ospreys v Ulster
Liberty Stadium
Guinness Pro12
Saturday 29th April
3pm
(15-9) C Gilroy, A Trimble (Capt), L Marshall, S McCloskey, C Piutau, P Jackson, R Pienaar
(1-8) A Warwick, R Best, W Herbst, K Treadwell, A O'Connor, I Henderson, S Reidy, R Diack
Replacements (16-23) R Herring, C Black, R Ah You, F van der Merwe, N Timoney, P Marshall, S Olding, J Stockdale
Here is your Ulster team for Saturday's huge @PRO12rugby Round 21 trip to @ospreys. #SUFTUM https://t.co/otG9W6l5d3 pic.twitter.com/jxXukLhKNc
— Ulster Rugby (@UlsterRugby) April 28, 2017