Mata played a part in the build up to Robin van Persie 's opener on his winning debut against Cardiff and he also set up the Dutchman against Stoke -- .
United eventually fell to defeat against the Potters .
Mata played a part in the build up to Robin van Persie 's opener on his winning debut against Cardiff and he also set up the Dutchman against Stoke -- although United eventually fell to defeat against the Potters .