Aston Villa midfielder Jack Grealish was punched by a pitch-invading Birmingham fan in a shocking incident during Sunday's Championship clash between the bitter rivals.
Grealish was in the Birmingham penalty area in the 10th minute when a man ran on to the field and threw a punch from behind at the Villa captain. The blow caught Grealish on the side of the head and sent him sprawling to the turf.
The intruder was restrained as Villa players rushed to Grealish's defence. He was taken to jail afterwards.