Celtic playmaker Ki Sung-yueng admits he is aware of the speculation surrounding his future.
Premier League side Blackburn Rovers have been linked with the South Korea international along with several Russian sides.
Ki is currently preparing for his country's World Cup qualifiers against Lebanon and Kuwait and he insists nothing 'formal' has been tabled.
On Sunday first-team coach Alan Thompson stated Ki has a 'massive' future ahead of him and was not a player the club would be looking to sell.
"I know about the various offers, but the transfer window closes on Wednesday," explained Ki. "There has been nothing formal."