 Morison was also included in the club's 'Wall of Fame', which features "the six greatest players in Stevenage's history as voted for by the club's supporters".He made his debut for Millwall in the opening game of the 2009–10 season, starting in the club's 1–1 draw with Southampton; providing the assist for Millwall's equaliser.A month later, he scored his first goal for Millwall in a 3–1 victory over Huddersfield Town.