David De Gea "hasn't suddenly become a bad goalkeeper overnight", according to Paul Parker, who says critics have been too "quick to forget" about the Manchester United No 1's past heroics.
De Gea did not cover himself in glory as United suffered their first defeat in 20 matches at the hands of Chelsea in the semi-finals of the FA Cup on Sunday.
The Spain international allowed an Olivier Giroud effort to slip past him at his near post just before the interval, before fumbling a weak long-range effort from Mason Mount into the net moments after the restart.