Martial's agent has declared he wants to leave United.
“I think it's a shame to see him wanting to leave already," Saha told the Daily Express.
“I recognise for example when David Bellion was signed during my time at the club he was frustrated he was't playing all the time but he was playing with big players Giggsy and Ronaldo those players, but he wanted play right now but he was so young.
“It was already in that generation where players were impatient. Why? Because of social media and the agents, they don't understand they have to prove themselves, if something is hard they have to maintain their levels and say 'hang on a minute maybe I haven't done enough'.
“It shouldn't be like 'maybe it's Mourinho's fault', yes there are always excuses but when you're good you play. That's it.
“If I'm not playing it's because I'm not scoring enough goals or creating enough, so that's why he's got to show people that he's more than good enough."