Jose Mourinho's Manchester United have helped in setting the benchmark for heavy spending in the Premier League this summer.

The Red Devils have already spent well over £100 million on Victor Lindelof and Romelu Lukaku, but the Portuguese is not ready to settle with what he has already got.

Nemanja Matic is another target, while Marouane Fellaini could be heading in the other direction over the final month of the transfer window.

Transfer business is not yet done, in either direction, at Old Trafford, with the former Chelsea boss having admitted, though, that he may have to settle for just one more arrival this summer.

Spending in the Premier League has been as crazy as ever, with Manchester City having spent over £200 million already, and that's made dealings tough for a lot of clubs.

Players who had once been reasonably priced for many of the league's top teams have now seen their valuations rocket as the clubs look to maximise their profits from England's big spenders.

Mourinho close to United fall out

United are by no means short of cash this summer, but it has become apparent that Mourinho has grown frustrated with the club's lack of progress in acquiring his list of targets.

It's two incomings to City's six, Liverpool's three and Chelsea's five - all of whom they will be expecting to challenge for the title alongside next campaign.

However, according to the Mirror, the deeper reason for the United boss' transfer frustrations is because he feels the club's hierarchy are trying to do business on the cheap.

That's regardless of the fact that Lukaku's deal will ultimately cost them £90 million when all said and done.

Perisic pursuit over

Mourinho has been hotly pursuing the signing of Inter Milan's Ivan Perisic this summer, but a deal is apparently now off the cards after the Red Devils failed to meet the club's £48 million price tag.

While it has been a similar situation in the 54-year-old's interest in Chelsea's Matic, who has reportedly been close to a move Old Trafford for weeks, with the deal still yet to be completed.

Understandably, given the transfer activity at United's cross-city rivals, Mourinho has reason to be anxious. But the exact reasons for his frustrations are odd, given the club's heavy spending so far.