Ole Gunnar Solskjaer’s men needed extra-time to edge past FC Copenhagen 1-0 to reach the semi-finals of the Europa League.
It was Bruno Fernandes who scored the match-winning penalty to secure the Red Devils’ victory in Cologne, but Martial was arguably United’s best player on the pitch.
The Frenchman provided Manchester United’s forward propulsion with his guile and skill throughout the game.
He forced an excellent save from Karl-Johan Johnsson and nearly scored a late winner, before winning the penalty in extra-time that led to United’s winner.
Speaking on BT Sports as a pundit, Van Persie hailed Martial and insists he was the Premier League outfit’s best performer.
“The outstanding player for me tonight was Martial,” said the ex-Red Devils striker.
“When he switches it on he’s just too fast, too silky and wow, what a player!”
“He is such a joy to watch. It’s like he’s having a kick-about in his own garden.
“What I like about Martial is he has an eye for his team-mates – he isn’t just playing for himself. He always has an eye for his team-mates and that’s what sets him apart from very good players.
“That’s why I think he’s world-class. He can provide, he can give assists, he dribbles, he’s fast but he has great awareness of what’s around him.”
Martial has scored 23 goals and provided 12 assists in 47 games across all competitions.