Hernandez has made a rapid recovery from the shin injury he sustained in last weekend's win over Chelsea, while Welbeck returned from a hamstring problem in the midweek Carling Cup success at Leeds.
Quick recovery: Hernandez limped off in last week's win against Chelsea
Chris Smalling (groin) is a doubt, but fellow England defender Rio Ferdinand is set to return from a calf injury.
Provisional squad: De Gea, Lindegaard, Evans, Evra, Fabio, Jones, Smalling, Ferdinand, Anderson, Carrick, Fletcher, Giggs, Nani, Park, Valencia, Young, Berbatov, Hernandez, Owen, Rooney.
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