Ex-Manchester United goalkeeper Mark Bosnich has insisted the club must spend more than £200 million this summer.
As reported by talkSPORT, the former United star has suggested that the club must improve their squad or face a number of years outside of the Champions League.
David Moyes' side have had a disastrous campaign and look set to miss out on qualification for Europe's elite competition.
The Red Devils currently sit in seventh place in the Premier League and were knocked out of the Champions League at the quarter-final stage last night.
And Bosnich has now warned the club that they must spend over £200m in the up coming market.
Speaking to the Alan Brazil Sports Breakfast show, the former Manchester United shot-stopper said: “Man United will probably have to spend a little more than £200m. Money wise, Manchester United can afford to be out of the Champions League for a few years. Where they can’t afford to fall behind is in their ability to entice top players to the club.
“If you’re going to get the best players in the world to play for you, then some of them will take a little less [money] if they know they’re going to play in the Champions League. It’s the biggest level of football bar none, including the World Cup. That’s where it’s going to cost them.
“To entice those players you’re probably going to have to pay them a little more just because you’re not in the Champions League. You have to say, ’I know we’re not there this year, but if you come here then you can help us be in it the year after’.”
A number of players have already been linked with a move to the Theatre of Dreams in the build up to the up coming window.
Reports have suggested that Manchester United are set for talks with midfield target Toni Kroos today, however it remains to be seen as to how many players Moyes will bring to Old Trafford this summer.