Negotiations will go down to the wire, as clubs seek the best possible transfer deals. Here's a look at some of the high profile deals - some likely, some less so - that could happen before the transfer window closes.
5. Olivier Giroud - Chelsea
The striker domino effect is likely to kick off at some point today, and Chelsea's Olivier Giroud is one who's likely to topple into a new club. He could go to Lazio, Spurs, or even Newcastle United if reports are to be believed. (Photo by Alex Grimm/Getty Images) Photo: Alex Grimm
6. James Rodriguez - Real Madrid
Could Arsenal pull another last-gasp, Mesut Ozil-style deal out the bag? They could well look to swoop for the Los Blancos man, and Everton are also said to be on his tail. (Photo by PIERRE-PHILIPPE MARCOU/AFP via Getty Images) Photo: PIERRE-PHILIPPE MARCOU
7. Thomas Lemar - Atletico Madrid
Bayern Munich are eager to sign him, but Arsenal could well look to hijack the deal late on. He's looking to revive his career after an underwhelming spell in Spain. (Photo by GABRIEL BOUYS/AFP via Getty Images) Photo: GABRIEL BOUYS
8. Edinson Cavani - PSG
Manchester United and Chelsea both want him, but he doesn't seem to be too enamoured with a move to England. He looks most likely to go to Atletico Madrid at the moment.(Photo by FRANCK FIFE/AFP via Getty Images) Photo: FRANCK FIFE