Michael Brian Morrison (born 3 March 1988) is an English professional footballer who plays as a centre back for EFL League One club Cambridge United.

[4] He started his football career with Cambridge United, where he came through their youth academy and at the age of 15 became the youngest player to ever feature for their reserve side.

[15] Helping Leicester win promotion as champions, he ended their last home game of the season by scoring two goals against Scunthorpe United on 24 April, the night they received the League One trophy.

[22] He quickly established himself as a key member of Chris Powell's team, winning League One Player of the Month for November 2011.

[24] He went straight into the starting eleven for the following day's goalless draw at Wolverhampton Wanderers,[25] and kept his place thereafter, establishing himself as centre-back of choice alongside captain Paul Robinson.

In December, it was announced that Morrison would sign a three-and-a-half-year contract with Birmingham once his loan ended and the January transfer window opened.

[26] His loan was initially extended for a few days to ensure his eligibility for the third-round FA Cup tie against Blyth Spartans, when he captained the team, and the permanent move was confirmed on 5 January 2015.