First misconception that people have is that Ten Hag is actually keeping Martial on the bench but that is not the case because Martial is rather injured and not just on the bench. Even after Hojlund was signed, Martial was still trusted by Ten Hag and he played more than Hojlund not until they fell out and he eventually got injured which provided Hojlund with this great opportunity.
Hojlund had been at a wrong side of luck in the first games of premier league even though he was scoring in the champions league but right after he started scoring it came game in game. He wasn’t missing chances but rather the chances weren’t coming is way and his team mate weren’t providing too.
As for Martial leaving it is chin decision, In fact martial wanted the contract renewal even if it will be at a detriment of cutting down his wages but Manchester United do not want as the new owner are seriously doing a squad overhaul and deemed martial surplus to requirements at the moment
Whenever Antonio Martial is fit, he is the best option for Manchester United leading the attack, I can recall vividly the effects and presence he had on the pitch during the game against Eveton, that was during the first half of the Premier League season. Erik Ten Hag has always trusted him but, injuries has always been a drawback. I know Jose Mourinho can wait to see him leave Manchester United lol.
Rashford and Bruno Fernandez has created less chances for him ( Rasmus Hojlund )and tue goals he scored during the Champions League Competition are all goals scored one way or the other by himself without the assistance of these players mentioned.
No! Too much of that injury, Manchester United cannot rely on such a player if they're making plans to win the Premier League or whatever Competition. Antonio Martial has no other option but to leave.