Ruben Amorim winning just seven of his 29 Premier League matches in charge of Manchester United is a ‘disgusting’ effort.That’s according to talkSPORT’s Andy Goldstein, who also expressed his strict opposition towards the potential sale of Kobbie Mainoo.United have picked up one point from a possible six so far this seasonAFPUnited, who finished 15th last season, have gone winless in the first two Premier League fixtures of the 2025/26 campaign.A 1-0 defeat to Arsenal was followed by their 1-1 draw with Fulham on Sunday, with both matches highlighting their ongoing issues.Head coach Amorim continues to struggle in the dugout and face the pressure that comes with such a prestigious job in world football.And on talkSPORT Drive, Goldstein vented his frustrations with the current situation surrounding his beloved United.“To win seven Premier League games is nowhere near good enough,” said Darren Bent, and Goldstein added: “It’s disgusting, it’s disgusting. “We’ve spent close to £200millon, we’ve got a strike force… One of our problems last season was lack of goals, although I did think our problems were everywhere on the pitch, not just a lack of goals. Defensively, I think we looked shambolic.”Goldstein then began a furious rant, which detailed his concerns with Mainoo potentially leaving the club if a suitable offer is made.“I don’t know where I’m going to start, but I’ll start with, in no particular order, formations. Three at the back is not working, I don’t think it’s ever going to work for Man United. “And he [Amorim] can claim he hasn’t got the players, but he’s had windows to get players in. He bought two no.10’s, we had Bruno Fernandes, we had a no. 10, we didn’t need two more.“I understand that if you want to play in a style where you’re getting rid of [Alejandro] Garnacho [to Chelsea] and you’re getting rid of [Marcus] Rashford [on loan at Barcelona], maybe these two players can replace them, I get that, I understand it.Goldstein delivered a scathing assessment of the clubtalkSPORTAmorim has won just 24 per cent of his Premier League matches“But the problems for Man United were not scoring goals, but also defensively, right? We haven’t sorted out the goalkeeper, [Andre] Onana looks like he’s our second choice now. “I don’t know if we’re doing this deal to bring in this young Belgian kid [Senne Lammens] coming in, but I don’t know if he’s the answer. All of a sudden, you bring a young kid in and it’s his job, his responsibility to stop conceding goals… It’s massive. “And you’ve got someone like [Gianluigi] Donnarumma, apparently he’s in talks with Man City… I think, I was talking to Anil in there, he’s a Man United fan, we were chatting earlier on, we were both crying on each other’s shoulders. “But we were talking about the squad that we’ve got and the players we’ve got, and we’ve got a team that can play 4-3-3, we’ve got that team. The three in the middle of the park would be Kobbie Mainoo…“If Kobbie Mainoo is allowed to leave Manchester United, everyone needs to look at themselves, that would be disgusting to let a young kid who played for England in the final of the Euros, let’s not forget that, looked fantastic… “We did a show before the Euros and the question was, ‘Who is England’s important player?’ And I said Kobbie Mainoo, and people laughed at me. Through that Euros campaign, it looked like I was right… He was an important part of England.Mainoo could become a surprise exit from United before Deadline Day on September 1Getty“Now he’s not getting a look-in and that means he wants to leave, supposedly. If we let him go, it’d be a travesty. If you play 4-3-3, the three would be Kobbie Mainoo, Casemiro just protecting, with Bruno playing that role [in front]. “And then your three at the front could be Sesko down the middle, Mbeumo one side and Cunha on the other, playing as a wide three. You’ve got players like Mbeumo, more so Mbeumo but Cunha… They can’t play tight.”Goldstein then added: “We’ve got the players there that will look better in four at the back, they’ll look more comfortable. I like [Matthijs] De Ligt, he had a poor game at the weekend, but I like him.“You could play him and Lenny Yoro, looks good, made a couple of good challenges. You could play them two at centre-half, Luke Shaw at left-back and Diogo Dalot, right-back. “Now I’m not saying, ‘Wow! That team’s good enough to win…’, but that team… Structure is there, much more comfortable.“And I don’t understand why, and I’ve said this before, if you’re that good a manager, you look at the tools you’ve got, you look at results that are coming in. And you know it’s not working, it’s not working, change it.” United’s upcoming fixturesLeague Two side Grimsby Town will welcome United on Wednesday night in the Carabao Cup second round, live on talkSPORT.Amorim and co. then return to Old Trafford on Saturday for the visit of Burnley, who are 11th and above them in the Premier League.After the September international break, United will face Manchester City and Chelsea in back-to-back league clashes.A trip to Brentford rounds off their action for next month, and could see the club continuing to linger in the bottom half of the table.