Charlton v Tottenham, (The Valley, 7.45 p.m.)
Under-fire Tottenham boss George Graham is boosted by the return of striker Chris Armstrong for tonight's fourth round clash against Charlton at The Valley.
Armstrong's comeback will relieve some of the pressure from out-of-sorts Ukrainian Sergei Rebrov, especially as Andy Booth is cup-tied. Armstrong has been suffering from a groin problem which has restricted him to only five starts all season, but he is in the squad for the match, which offers a home tie against Stockport in the next round.
More good news for Graham is the return of Tottenham's player of the year, Republic of Ireland right back Steve Carr, who has also been missing with a groin injury since December 27th.
Charlton will again be without goalkeeper Dean Kiely because of a groin injury, so Sasa Ilic is likely to deputise after keeping a clean sheet at White Hart Lane in Saturday's league clash.
Jonatan Johansson and Mark Kinsella are both back in training but are unlikely to be risked, but Mark Fish has recovered from illness.
Derby v Blackburn, (Pride Park, 8 p.m.)
Derby County manager Smith will again be without goalkeeper Mart Poom for the match against the high-flying First Division side as he is still recovering from a shoulder injury.
Andy Oakes, who kept a clean sheet against Sunderland, retains his place between the posts. Skipper Darryl Powell is rated doubtful after suffering head injuries in a clash with Daniel Dichio on Saturday.
The most decorated player in FA Cup history gets another chance on the glory trail when Mark Hughes plays for Blackburn Rovers.
Hughes was the only player in the 20th century to collect four FA Cup winners' medals. He was suspended for the goalless home tie between the two sides.
If Rovers were to make it to the FA Cup final it would be even more special for Hughes. He is the current Welsh national team manager and this year's final will be played at Cardiff's Millennium Stadium.
Kingstonian v Bristol City, (Kingsmeadow, 8 p.m.)
Kingstonian manager Geoff Chapple goes into this fourth-round replay with Bristol City attempting to send the west country club the way of the seven other league sides he has plotted embarrassing downfalls for.
The replay, which will net the club some £170,000 towards the redevelopment of their stadium, gives the minnows a second chance following Tony Thorpe's leveller at Ashton Gate.
However, the mental approach of Kingstonian, whose cup exploits have led to a virtual desertion of their league programme (they have four and five games in hand on their fellow strugglers), may have been affected by the weekend's FA Trophy defeat to Southport.