Millwall vs Wigan
Millwall midfielder Liam Trotter is an injury doubt with a knee problem and is rated 50-50 by manager Kenny Jackett. James Henry could start after proving his fitness following a month out with knee ligament damage, but fellow winger Martyn Woolford and on-loan Crystal Palace striker Jermaine Easter are cup-tied.
Wigan boss Roberto Martinez will be picking from strength for the club's first FA Cup semi-final after reporting no fresh injury concerns. His major selection dilemmas centre around whether to partner James McArthur or Jordi Gomez with James McCarthy in central midfield and if Callum McManaman will be selected ahead of Franco di Santo.
Top scorers (all competitions): James Henry, Andy Keogh & Liam Trotter (Millwall) 6; Arouna Kone (Wigan) 12
Referee: Michael Oliver (Northumberland).
Chelsea vs Man City
Chelsea striker Demba Ba has recovered from the ankle injury he sustained against Sunderland last weekend. Ashley Cole (hamstring) and his fellow England defender Gary Cahill (knee) remain out alongside long-term absentee Oriol Romeu (knee). Ryan Bertrand, who missed the Europa League quarter-final against Rubin Kazan because of illness, is available.
Manchester City playmaker David Silva (hamstring) has not yet been ruled out and manager Roberto Mancini will give the Spaniard until the morning of the match to prove his fitness. Striker Sergio Aguero is pushing to return to the starting line-up after two substitute appearances since recovering from a knee injury but is not yet rated fully fit.
Top scorers (all competitions): Fernando Torres (Chelsea) 19; Carlos Tevez (Man City) 16
Referee: Chris Foy (Merseyside).