Millwall initially completed the signing of Gillingham defender Mahlon Romeo on a one-year contract in May 2015, but that deal was soon extended on a long-term basis.
Mahlon originally joined The Gills the summer of 2012 on a two-year scholarship, having previously played in the youth systems at Arsenal and Wycombe Wanderers.
The right-back was given permission to feature for Millwall's U21s towards the end of the 2014/15 campaign and when injuries to both Carlos Edwards and Shaun Cummings handed him a first-team chance at Walsall in February 2016, he grabbed it in spectacular style. Not only did The Lions romp to a 3-0 win at the League One high-flyers, Mahlon marked his debut with a stunning goal.
Mahlon was a huge part of the side that gained promotion to the Sky Bet Championship via the Play-Offs in 2016/17, before making 27 appearances the following season - scoring his solitary goal against Sheffield United. The defender was a mainstay as The Lions stayed up in 2018/19, featuring 41 times, and currently holds eight caps for his native Antigua & Barbuda.
The right-back has continued to feature heavily in Gary Rowett's plans since the manager's arrival in October 2019.