Brentford FC Head Coach, Thomas Frank, said: “I am very happy that Marcus has signed a new contract. His new deal shows that we believe we can have a great future together. Marcus has huge potential as a goalscorer. He might be the best finisher at the club but there are other areas where he needs to learn and improve. The opportunity to play at AFC Wimbledon is a great one for him and will help him to work on all the little areas to turn him into a top striker. I wish him all the best and look forward to seeing him back at Brentford.”

The striker joined Brentford B from West Brom in the summer of 2017 and broke all scoring records during his first season with the B Team. He found the net 21 times and picked up the Mary Halder B Team Player of the Year Award at the end of the campaign. That form was rewarded at the time with a new contract and promotion to the First Team squad.

Marcus made a goal-scoring professional debut in an EFL Cup tie at Southend United last August, with his Sky Bet Championship bow coming later that month against Blackburn Rovers. A back injury kept him out until the New Year and, when he returned, he made a further six First Team appearances, netting his first Championship goal during our final day victory over Preston North End. So far this season the 20-year-old has netted once in three matches, his goal coming against Cambridge United in last month’s Carabao Cup tie.

Brentford FC co-Director of Football, Phil Giles, said: “I am pleased that Marcus extended his contract with us before making this loan move. We hope that he will do a fantastic job for Wimbledon and then be ready to return to compete for a place in our first team, still with many more years to look forward to at Brentford. We wish him well on loan and will be monitoring his progress."