Manchester United find themselves needing to work within certain financial parameters, which may lead them to bring in a well-known free agent if reports are to be believed.

Diego Leon becomes latest star to join Man Utd

Matheus Cunha became Manchester United's first arrival of the window after moving to Old Trafford from Wolverhampton Wanderers, and another South American talent has now joined him in the form of Paraguay Under-20 international Diego Leon.

Coming in from Cerro Porteno, the left-back stated upon his arrival: "First of all, I want to thank God for giving me the opportunity to defend such a great badge as Manchester United. I promise to give my best every day, in training, on the pitch, and off it. Thank you to the club for the trust and to my family for always being by my side.

"I hope to bring a lot of joy to all the Manchester United fans and everyone who supports me on this journey. One more goal achieved. From Paraguay to the world. Let's go, Red Devils!"

Bryan Mbeumo is at the top of Manchester United's wishlist, and there is still hope the Red Devils could finalise a deal to sign the Cameroon international by Monday after weeks of both parties trying to find an agreement.

Juventus midfielder Douglas Luiz could be brought in at Old Trafford to strengthen Ruben Amorim's engine room, with Jadon Sancho heading in the opposite direction after his spell at Chelsea.

Missing out on Champions League qualification has left Manchester United needing to juggle their finances to conduct business this summer without falling foul of the authorities, leading them to enter the race for an unattached England international.

According to The Sun, Manchester United want to sign Dominic Calvert-Lewin, and they have made contact with the former Everton striker to ascertain whether he would be interested in a 'shock' move to Old Trafford.

The England international earned £100,000 per week at the Toffees and would likely command a hefty pay packet. However, the Red Devils are willing to put forward a 'lucrative' deal including appearance-based bonuses to land his services, with Amorim personally keen on the striker.

Labelled "dangerous" by Ian Wright, the 28-year-old is seen as a reliable third or fourth striking choice at Manchester United. He would also carry the carrot of homegrown status for registration purposes.

Nevertheless, Calvert-Lewin has suffered numerous injury problems over the last few years and managed only 26 appearances last term, scoring three times.

On his day, the former Sheffield United man is an effective focal point and a tough competitor for defenders, though it is fair to say his recent statistics don't point to him being a prolific option should he make the move to Old Trafford.