The first FA Cup tie involving United in 13 years not to be televised live saw the hosts prevail with two goals in the final six minutes. Jesse Lingard smashed in a swerving volley for his eighth goal in 10 games and Romelu Lukaku added a second after breaking from the halfway line.
Alexis Sanchez made his debut and provided goals for team-mates Marcus Rashford and Ander Herrera on a Friday night in Somerset. Lingard and Lukaku scored late on to put a gloss on the scoreline as United boss Jose Mourinho celebrated his 55th birthday and his 100th match in charge with a win.