Four transfers Chelsea can complete this week with transfer window set to open

are gearing up for another busy summer in terms of incomings and outgoings, with large squad set to be revamped yet again. and co will be pushing to challenge for the title and success in Europe, having reached the final.

The Blues are expected to bring in another attacker, with some exciting young players set to join up with the team once more. Here, Express Sport looks at four transfer deals that could be sealed this week as the window officially opens.

Bashir Humphreys

Chelsea have already announced that Bashir Humphreys has agreed a permanent transfer to , having spent the season on loan at Scott Parker's promotion-winning side. The deal will officially go through on Sunday, June 1, and Humphreys has penned a four-year contract.

"Thank you, Chelsea," the young defender wrote on social media. "I'm so grateful to all the staff & players I've come across during my time at the club. I met some amazing people & made friends for life. To the fans, thank you for your endless support. Wishing you all the best. Chelsea will always be in my heart."

Alejandro Garnacho

boss has reportedly . If Chelsea renew their interest, a deal could be reached swiftly.

They already held talks regarding the Argentinian winger in January and United will be desperate to recoup money to reinvest in their own squad as soon as possible.

The 20-year-old is likely to be available for a fee in the region of £60million and because contacts were already established a few months ago, plenty of the groundwork for a transfer may have been completed.

Christopher Nkunku

claim that Christopher Nkunku has decided to leave Stamford Bridge and end his torrid two years at Chelsea.

Injuries have curtailed his progress, but the Frenchman has fallen down the pecking order and struggled in both central and wide areas.

His time at Chelsea appears to be up and Nkunku could seal a quick transfer to help realise his talent elsewhere.

Jadon Sancho

If Chelsea want to, they can take up the £25m obligation and sign permanently. The clause in his loan contract from United, however, also includes the stipulation that Chelsea can cancel that arrangement by paying a £5m penalty.

It is looking likely that Sancho will not be a Chelsea player next season, but any change of heart this week could see a deal finalised sharply.