Much was expected of France international Martial following his record-breaking move from Monaco in 2015.
But since becoming the most expensive teenager in history, Martial has blown hot and cold at Old Trafford, despite making more than 250 appearances for the club.
The 25-year-old enjoyed his best season to date in 2019-20 – scoring 23 goals in all competitions – but this campaign has been struggle for Martial, who has netted just four goals in the Premier League, often playing back-up to the likes of Marcus Rashford and Edinson Cavani.
Martial’s recent struggles have led to speculation over his future at Manchester United but Saha hopes his former club keep the faith and resist the temptation to cash in on the Frenchman this summer.
‘I really don’t think he’s a player Man United should let go because he can be that player who completes the striking force as he’s unique in the way he plays,’ Martial told talkSPORT.
‘When you’re not scoring you need to be obsessed with scoring goals and I think sometimes he doesn’t show that.
‘I think he’s a top player, that’s for sure. I think when you’re a No. 9 and you’re not scoring, it’s difficult as people are only asking you to score goals. That’s it.
‘When you’re not doing it you’re going to be criticised. You need to be strong and really believe. You also need to be selfish and adopt a style of play that you really fancy.
‘This is why he’s getting the criticism. It’s not about his talent or desire because he has that I’m sure.
‘It his expression sometimes. Having that obsession with scoring goals makes it easier because people say he’s been unlucky but you can see when he’s in his comfort zone people get on his back.’