It took just 15 minutes for the Crystal Palace analysts inside Old Trafford to identify their main problem. Blessed with a vantage point high up in the ground, they could see the entire pitch and didn't take long to notice Sofyan Amrabat drifting into central midfield.
The Moroccan started his first game for Manchester United in Wednesday's 3-0 Carabao Cup win - ostensibly at left-back, although in reality his role was far more varied.
Tasked with marshalling the young and exciting Jesurun Rak-Sakyi when out of possession, Amrabat was instructed to move into central midfield and beyond when United had the ball.
Within the first 20 minutes he had ballooned an effort over from the edge of the box and pressed Tyrick Mitchell, Palace's own left-back. ALSO READ: United hoping to have at least three players back vs Palace ALSO READ: Amrabat comment shows why Ten Hag wanted him With United dominant in possession and Palace sitting deep, Amrabat was allowed to push into central midfield at will and it was from there that he caused problems.