The question of what can't he do sparked some mocking and sarcastic responses from United supporters. Many simply answered "Play football" as the obvious answer.
"I want to see him cook," one fan responded. "Like cook clubs next season".
Another had a long list of things beyond the ex-Ajax star's grasp, saying: "Sing, Pass, Take on his man, Score, Assist, Be serious, Be worth the money heâs on, Be worth the money we paid for him."
United fan Alen had a list of his own, saying: "Canât dribble, canât use his right foot, canât justify his 100M price, canât be unpredictable, canât linkup, canât track back, canât be good and most importantly canât stop p*ssing off the fans."
"Can never give you a good 90mins performance without breaking your heart," said another. "Heâs the only player that will make you say yourself, football isnât this hard."