United have spent big money to sign the attacking trio Benjamin Sesko, Bryan Mbeumo and Matheus Cunha this summer, with Amorim suggesting he has seen encouraging signs in his squad ahead of the big kick-off this weekend.
Yet former United captain Keane is less optimistic, as he gave a gloomy verdict to The Overlap when asked where he expects United to finish this season.
“At best United for me, eighth or ninth,” he stated. “The summer has not been too bad for United, but the proof starts at the weekend.
“They have brought a few attacking players in who know the Premier League. To me, over the last few years, they were bringing in players who were getting used to the pace of the Premier League and they weren’t robust enough. The next challenge is can they do it week-in, week-out for United.
“There is positives, but I will judge it over the next few weeks. Are these players up to it, will they score enough goals.
“They still have a lot of problems, of course. Huge questions marks… we will be here all day. They still have to sort out the goalkeeper situation and defensively.
“Don’t be putting United in the bracket of Arsenal, Liverpool and Chelsea. They are not in that conversation.”
Roy Keane appeared on The Overlap
Liverpool are spending big, but will it mean another Premiership title?
Keane’s former United team-mate Wayne Rooney offered up a more optimistic vision of United’s ambitions this season, as he told the BBC that Amorim’s side could challenge for a top five finish that could be good enough to secure Champions League qualification.
“I still think they need one or two more signings, but I think you can see what Amorim is doing,” said Rooney.
“I think it’s looking better for Manchester United, and I think they will sneak into the top five. I hope they do, you never know.”
Rooney went on to back Liverpool to retain their title, as they continue to push to sign Newcastle striker Alexander Isak.
“I already had Liverpool as favourites to win the title this year, but if Isak comes in, then I think they’re gonna be unstoppable,” he added.
“The quality they’ve got, as Danny’s just alluded [to], and I think a big thing was replacing Trent [Alexander-Arnold]. There’s a lot of chances created, a lot of goals came from that side.
“I think [Jeremie] Frimpong has got the attributes to fill that, so I think Liverpool look strong.”