As we approach the final 24 hours of the window there are a few big stories worth keeping tabs on.

Chelsea are set to break the world record fee for a goalkeeper after paying the 80m euros (£71m) release clause for Athletic Bilbao goalkeeper Kepa Arrizabalaga. The deal for the 23-year-old will surpass the £66.8m Liverpool paid for Alisson in July, and allow Thibaut Courtois to complete a move to Real Madrid.

In a busy day for the Blues, Croatia and Real Madrid midfielder Mateo Kovacic is set to have a medical in SW6 ahead of a loan move from the Champions League holders. The deal may see Tiemoue Bakayoko leave the club on loan, with reports of AC Milan showing interest in the 23-year-old.

Wolves have continued their spending spree with the signing of Spanish winger Adama Traore for a club-record fee after meeting the £18m release clause in his Middlesbrough contract.