Marcus Rashford’s best days are behind him – he isn’t trusted by Michael Carrick and his presence is doing more harm than good.That’s the view of talkSPORT’s chief football correspondent Alex Crook, who has shared his thoughts on the forward after he was an unused substitute in Manchester United’s 1-1 draw with Leeds.Rashford’s goalless start to the season saw him left on the bench against LeedsGettyThe Red Devils‘ worst ever start to a Premier League season continued on Sunday, as their winless run extended to six games.It piles the pressure on boss Carrick, whose side have won just once in the league – a 5-2 victory against Ipswich in their second game – and sit just two points above the bottom three in 13th.As for Rashford, he has struggled to have a positive impact since returning to Old Trafford following his loan spell at Barcelona.The England star is yet to register a goal contribution this term, having made eight appearances across all competitions.That’s despite starting on six occasions, and his lack of end product meant he wasn’t called upon at the weekend as United went in search of a winner at Elland Road.Rashford return questionedWith Rashford having little influence as United continue to struggle, United fan Crook has claimed his return is only proving a hindrance.An academy graduate, Rashford quickly established himself as one of England’s brightest young talents after bursting onto the scene as an 18-year-old.He remained a key player for United in the years that followed, and signed a five-year deal worth in excess of £325,000-per-week in 2023 after a 30-goal season, which he remains under contract now.However, after two loan spells away at Aston Villa and Barcelona, Crook told talkSPORT Breakfast: “I think he’s probably peaked.“That season, when he scored so many goals under Erik ten Hag [30 in 2022/23 term], that convinced them to give him this huge, big-money contract, which has been a real problem, I think, for the football club.Rashford has scored 138 goals for United, but wasn’t called upon against LeedsAFPThe 28-year-old has failed to pick up where he left off last season at BarcelonaGetty“And since he came back in, I was hoping that maybe his spell away at Barcelona would have sparked a new lease of life out of Marcus Rashford, but we haven’t seen it, in all honesty.“And I think Michael Carrick was absolutely right to put him on the bench yesterday, and the fact he didn’t bring him on at the end of the game when United are short of goals and chasing a winner probably tells you he doesn’t trust him at this moment in time.”United finished an impressive third in the Premier League last season, with Bryan Mbeumo, Benjamin Sesko and Matheus Cunha all hitting double figures in league goals.Rashford’s return was expected to boost their attacking threat having registered 14 goals and 15 assists on loan at Barcelona in 2025/26.However, with United’s forward line struggling to deliver the goods this term, Crook believes Rashford’s return has upset the squad -particularly Cunha, who has scored just once so far.He continued: “I think his return has been a problem, I think there’s probably some unhappy players in that dressing room that he’s earning so much money.Matheus Cunha hit 10 Premier League goals in his debut season for United last termGetty“I think it’s been an issue for Matheus Cunha, because it’s his place that he took and you can see that Cunha is sulking a little bit.“And there was such a good balance at the top end of the pitch last season with Cunha and Mbeumo and Bruno Fernandes, Amad Diallo, Sesko when he was fit.“But Marcus Rashford, I think, not on a personal level, but just because those players feel aggrieved, I think he’s upset the balance of the attack and isn’t putting the numbers on the board at the moment to justify that huge salary.”