Arsenal v Swansea - FA Cup third round replay
Arsenal will be without suspended defender Laurent Koscielny and injured midfielder Mikel Arteta (calf).
Czech midfielder Tomas Rosicky (calf) is also sidelined. Forward Gervinho is away at the African Nations Cup with Ivory Coast.
Swansea manager Michael Laudrup is expected to shuffle his pack
The Dane has a fully-fit squad to choose from for the trip to the Emirates Stadium, but is likely to make changes to his side in the middle of a month where the Swans could end up playing nine games.
Loan signing Roland Lamah is unavailable as he was not registered at the time of the initial tie, which ended in a 2-2 draw at the Liberty Stadium.
Arsenal squad: Szczesny, Gibbs, Vermaelen, Mertesacker, Sagna, Podolski, Cazorla, Ramsey, Oxlade-Chamberlain, Wilshere, Walcott, Mannone, Coquelin, Santos, Jenkinson, Diaby, Giroud, Arshavin.
Swansea squad: Vorm, Bartley, Flores, Williams, Britton, Lita, Michu, Graham, Hernandez, Dyer, Routledge, Monk, Shechter, Moore, De Guzman, Tiendalli, Rangel, Ki, Tremmel, Agustien, Gower, Richards, Davies.
Manchester Utd v West Ham Utd - FA Cup third round replay
Wayne Rooney is set to return to the Manchester United starting line-up.
Rooney has recovered from the knee injury he suffered in training on Christmas Day and is likely to be among a number of changes for the Red Devils.
Nani is fit again after spending two months out with a hamstring problem but Ashley Young (knee) and Johnny Evans (hamstring) both miss out.
West Ham have defensive trouble after James Collins suffered a hamstring injury in the defeat at Sunderland.
Manager Sam Allardyce has only three fit defenders to choose from, so may opt to change his system at Old Trafford as Joey O'Brien (hamstring) and George McCartney (knee) are definitely out, but midfielder Mohamed Diame is available again.
Striker Marouane Chamakh is ineligible for the cup competition due to the terms of his loan from Arsenal, while Allardyce is still deciding how best to integrate new signing Wellington Paulista, with Andy Carroll (knee) and Modibo Maiga (African Nations Cup) also absent.
Manchester United squad: Lindegaard, De Gea, Amos, Smalling, Vidic, Ferdinand, Evans, Buttner, Evra, Cleverley, Giggs, Fletcher, Anderson, Scholes, Carrick, Kagawa, Nani, Hernandez, Rooney, Welbeck, Van Persie.
West Ham United squad: Jaaskelainen, Spiegel, O'Brien, Reid, Tomkins, McCartney, Potts, Spence, Demel, Taylor, Nolan, Diame, Noble, Collison, Diarra, Jarvis, J Cole, O'Neil, Vaz Te, C Cole.
Chelsea v Southampton - Premier League
Chelsea strikers Demba Ba and Fernando Torres are available for Wednesday's Barclays Premier League clash with Southampton following their struggle with a hamstring injury and illness respectively.
John Terry's comeback from a knee problem will continue, although he is short of match fitness and is unlikely to start at Stamford Bridge.
Nigeria duo John Obi Mikel and Victor Moses are unavailable as they are at the African Nations Cup.
Southampton could be without defender Luke Shaw.
The 17-year-old penned a new deal at St Mary's recently but suffered a gash on the knee in Saturday's win over Aston Villa and is now a doubt for the trip to Stamford Bridge.
Fellow defender Jose Fonte (knee) is still missing and, although he has returned to light training, club captain Adam Lallana (knee) remains absent.
Chelsea squad: Cech, Turnbull, Azpilicueta, Ferreira, Ivanovic, Luiz, Cahill, Terry, Cole, Bertrand, Lampard, Ramires, Mata, Oscar, Hazard, Marin, Torres, Ba, Ake.
Southampton squad: K Davis, Gazzaniga, Boruc, Clyne, Richardson, Stephens, Fox, Shaw, Yoshida, Hooiveld, Martin, Reeves, Ward-Prowse, Do Prado, Cork, Chaplow, De Ridder, Ramirez, Schneiderlin, S Davis, Puncheon, Lee, Lambert, Rodriguez.