Crystal Palace v Barnsley preview

Crystal Palace welcome back skipper Paddy McCarthy for the game.
Centre-half McCarthy missed the 2-2 draw against Derby last time out through suspension after his red card at QPR.
Gavin Mahon is set to be added to the squad after completing his loan switch from Loftus Road last week.
The experienced midfielder has not made a single appearance all season due to various injury problems but he has been in full training all week.
Kemy Agustien is still waiting to make his Eagles debut following his loan switch from Swansea but fellow midfielder Alex Marrow faces another couple of weeks on the sidelines with the ankle injury which has kept him out for nearly two months.
Barnsley skipper Stephen Foster and fellow defender Paul McShane could return to the squad for the match.
Centre-back Foster, sidelined for the last seven games due to a torn thigh muscle, returned to full training this week and hopes to be included.
McShane, on loan from Hull, was expected to be ruled out for at least four weeks due to a hamstring tear, but has made a rapid recovery and could even start.
Striker Danny Haynes is set to be involved after recovering from a leg injury.
But midfielder Jacob Mellis, on loan from Chelsea, and defender Lee Peltier are struggling with respective hamstring and groin problems and could miss out, while midfielder Diego Arismendi is battling to shake off a knock.
Barnsley have won only one of their last nine league matches.