Nemanja Vidic will miss the start of the Barclays Premier League season.
Ferguson said: "Neither Wes or Nemanja have long-term injuries. I would expect Wes to be fit for the game a week on Sunday.
"As for Vidic he pulled his calf in the warm-up in Munich (against Bayern Munich) and is two weeks away.
"Gary is doing a little bit of training and coming on fine but I do not think he will make Sunday."
Both played a half in the game against Valencia in midweek and Ferguson added: "We have a selection dilemma as to who plays in goal on Sunday. It is not an easy one for me."
Man Utd (from): Foster, Kuszczak, O'Shea, Ferdinand, Evans, Evra, Valencia, Fletcher, Carrick, Scholes, Anderson, Gibson, Nani, Giggs, Rooney, Owen, Berbatov, Macheda, Tosic, Fabio, Cleverley, De Laet.