A brilliant run down the right-hand side by Morgan Amalfitano, paired with a cool finish, stunned Manchester United down 1-0 at Old Trafford.
The French midfielder in the 54th minute broke with pace down the edge before slowly edging back inside, completely fooling Rio Ferdinand and leaving the English defender in his dust.
He finished calmly, deking De Gea and chipping over the goalkeeper heap lying on the ground.
Unfortunately for West Brom the lead was short-lived. Just three minutes later, a free kick from a tight angle came swinging in from Wayne Rooney.
A pair of Red Devils lurking in the box attempted to get a head on it and redirect it towards goal, but no touch was needed and it came all the way through into the far corner.
Robin van Persie has come on as a substitute directly after, replacing Javier Hernandez as United look for all three points now.