The Frenchman enjoyed a spectacular debut season at Old Trafford after his £36 million deadline day transfer from Monaco last summer.
He scored four goals in his first four games for the club and went onto score 17 goals across all competitions, despite being deployed on the wings for the majority of the season.
Speaking about his team-mates, Fosu-Mensah insists Martial is always a player who has stood out in his eyes.
“There’s so many great players at United. So many,” he said.
“Of course, everyone has their own qualities, but when I see Anthony Martial, I see an extremely good player.”
Martial quickly worked his way up to one of our most influential attackers last season and his debut season saw him level with Wayne Rooney and Brian Kidd for goals scored by players who started their first full season at United as teenagers.
There was plenty of pressure on his shoulders as he arrived at Old Trafford as a relatively unknown talent, but he immediately proved he was worth every single penny of his transfer fee.