Cesc Fabregas and Samir Nasri will return to pre-season with Arsenal this week, with the futures of both players yet to be resolved.
Fabregas could join Barcelona for a reported fee of £35 million, while Nasri is an alleged target for Manchester City and Manchester United.
Chelsea are also said to be interested in the Frenchman, while City have been linked with a double £27 million swoop for Nasri and teammate Gael Clichy.
Clichy had a medical at Eastlands today ahead of a potential move, but Arsene Wenger has not given up on keeping Nasri at the club.
Sir Alex Ferguson is hopeful he can bring Alexis Sanchez to Manchester, with Barcelona's bid for the Udinese winger yet to be accepted.
The Catalan club are still favourites for the Chilean's signature, but a potential deal for Fabregas would leave them light on transfer funds.
Ferguson has also been linked with a move for Bayern Munich midfielder Bastian Schweinsteiger, as he looks to further enhance his squad.
Chelsea manager Andre Villas-Boas reportedly wants to make Real Madrid defender Pepe his first Stamford Bridge signing.
Roberto Mancini claims Carlos Tevez will stay with Manchester after a potential swap deal involving Inter Milan's Samuel Eto'o failed.
Tottenham are eager to begin their summer spending by bidding for Barca's Bojan Krkic, who is also on the radar of Liverpool.
Bolton manager Owen Coyle says he has yet to receive an offer for Gary Cahill, despite alleged interest from Arsenal and Chelsea.