Erik Ten Hag's critical approach was evident in United's 3-0 win over Leicester City, despite a dominant first half by the opposition. Thanks to two world-class saves by David de Gea, United led 1-0 at half-time with a goal from Marcus Rashford.
Ten Hag spoke to his players at half-time and brought on Sancho, who quickly made an impact.
United put the game beyond doubt in the second half.
Despite the victory, Ten Hag was critical of the team's first-half performance, referring to it as "rubbish".