Sunderland defender a doubt for Swansea City trip
Sunderland captain John O'Shea is a doubt for the midweek trip to Swansea City.
The Irishman was substituted in the 3-1 FA Cup third round defeat at Arsenal with a calf problem midway through the second half.
And boss Sam Allardyce has revealed O'Shea is a doubt ahead of the Premier League match at the Liberty Stadium on Wednesday night.
O'Shea is the only fresh injury doubt for Allardyce ahead of the Swans clash.