United manager Sir Alex Ferguson will be choosing from a full squad when he selects his side to face Barca.
Apart from long-term injury victim Owen Hargreaves, who has been told he has no future at Old Trafford, all Ferguson's first-team squad men were put through their paces in a final, public, training session.
Darren Fletcher does appear doomed to miss a second consecutive final encounter with the Catalans though as he did not feature at the start of an 11-a-side practice match, instead providing shooting practice for Anders Lindegaard, along with Bebe, Gabriel Obertan and Darron Gibson, who are also expected to miss out.
Barcelona defenders Carles Puyol and Eric Abidal have both been passed fit.
Captain Puyol has been plagued by knee and hamstring problems in 2011, while Abidal only recently returned following a cancer scare.
Gabriel Milito (thigh) may not be risked at Wembley, while reserve goalkeeper Jose Pinto is suspended.
Man United (from): Van der Sar, Kuszczak, Lindegaard, Fabio, Rafael, O'Shea, Brown, Ferdinand, Vidic, Smalling, Evans, Evra, Valencia, Nani, Obertan, Bebe, Carrick, Scholes, Giggs, Fletcher, Anderson, Gibson, Park, Rooney, Hernandez, Berbatov, Owen.
Barcelona (from): Valdes, Alves, Pique, Puyol, Milito, Abidal, Xavi, Iniesta, Mascherano, Keita, Busquets, Villa, Bojan, Messi, Jeffren, Pedro, Afellay, Mino, Olazabal.