Arsenal midfielder Jack Wilshere is rated as '50-50' for the Blackburn tie
Arsenal midfielder Jack Wilshere is an injury doubt for Saturday's FA Cup fifth-round tie at home to Blackburn Rovers.
The 21-year-old, who limped off during Arsenal's 1-0 victory over Sunderland on 9 February with a thigh injury, could be rested so he can play in the UEFA Champions League tie with Bayern Munich on Tuesday.
Arsenal captain Thomas Vermaelen (ankle) and fellow defender Laurent Koscielny (calf) are also injury doubts for the match.
Seven Barclays Premier League teams play in the FA Cup this weekend, with 2012 winners Chelsea facing Brentford and league leaders Manchester United taking on Reading.
Fourth round matches
Sunday 17 February
Chelsea v Brentford (12pm)
Fifth-round matches
Saturday 16 February
Luton v Millwall (12.45pm)
Arsenal v Blackburn Rovers (3pm)
MK Dons v Barnsley (3pm)
Oldham Athletic v Everton (6pm)
Sunday 17 February
Manchester City v Leeds United (2pm)
Huddersfield Town v Wigan Athletic (3.55pm)
Monday 18 February
Manchester United v Reading (8pm)
