Manchester United striker Robin van Persie missed his side's 4-1 away defeat to Manchester City on Sunday with a groin injury but is expected to return very soon.
A decision on the Dutchman's fitness for the Manchester derby was left very late but in the end Van Persie had to watch from the stands as his teammates were outplayed by their local rivals.
United have confirmed that the injury is not serious and the 30-year-old is expected to return for Liverpool's visit to Old Trafford on Wednesday in the Capital One Cup - or failing that next weekend's Premier League clash with West Brom.
"We thought Robin would be okay. We gave him every chance. It's nothing serious. He could be involved on Wednesday or next weekend," said Red Devils manager David Moyes.
Following his side's humiliating defeat at the Etihad, Moyes explained further as to the reasons why his top striker had been forced out of such an important game.
"I don’t think it’s that bad, we thought he was going to make it. He just felt something in his groin," he added.
"He did a bit of training in the last couple of days, but he just felt it when he did any sharp movements and he didn’t want to aggravate it, so we took the decision [to not play him today]."
United's defeat leaves them eighth in the league with seven points from the first five games of the season.