Provisional Ulster squad for Glasgow

Hughes Insurance Academy players Alan O'Connor, James Simpson and Conor Joyce have been added to the panel as have front row players Ricky Lutton and Andrew Warwick.

Half backs Paul Marshall and Niall O'Connor have also been named after missing last week's match against Zebre. 27 year old winger Neil Walsh, a late replacement in that game, may get another opportunity this Friday against the Scottish outfit.

Ulster remains top of the PRO12 table following last week's 26-3 win over Zebre at home. They have a seven point advantage over second place Glasgow Warriors going into round 16 matches.

Extended Ulster squad v Glasgow, RaboDirect PRO12, Friday 22nd February,Scotstoun Stadium, 7.35pm;
Forwards (14)
Rob Herring, Nigel Brady, Ricky Lutton, Callum Black, Andrew Warwick, John Afoa, Neil McComb, Alan O'Connor, James Simpson, Dan Tuohy, Mike McComish, Conor Joyce, Ali Birch, Robbie Diack.

Backs (11)
Ruan Pienaar, Paul Marshall, Michael Heaney, Niall O'Connor, Stuart Olding, Paddy Wallace, Michael Allen, Andrew Trimble, Chris Cochrane, Neil Walsh, Ricky Andrew.