Wolves boss is ready to play Aston Villa striker against Birmingham City
The Swans' charge towards the play-offs stuttered before the international break, with two defeats and a draw from their last three, but boss Roberto Martinez is upbeat.
"The break has done us good and the boys are training with big smiles on their faces which is a good sign," he told the club's website.
"I don't think this derby will be beaten anywhere in the world for its uniqueness."
Preston could also move into the play-off zone if they win at Bristol City and other results go their way, but they have not picked up three points on the road since mid-January and only won one of their last five games.
At the other end of the table, Nottingham Forest visit Barnsley tomorrow hoping to snap a three-game losing run and escape the relegation zone.
Rock-bottom Charlton appear destined for League One next season but could restore some pride when they travel to troubled Southampton, who yesterday revealed they may fold before the end of the season unless a buyer is found.
Relegation-threatened Norwich, two points off the drop zone, host Sheffield Wednesday and on-loan Canaries striker Alan Lee is not underestimating the task ahead.
"It's massive," he said. "It's times like this when the personalities come out and you see what people are made of. It's a huge month and it's big for all the players and our careers."
Elsewhere on Saturday, QPR host Crystal Palace in a mid-table clash, Watford travel to Doncaster, Derby host play-off-chasing Burnley and Blackpool take on relegation-threatened Plymouth.
