"I am glad my coming here," Tosic told the Serbian newspaper Blic. "I believe I haven't had my final say at Manchester United and that my performances with Cologne will be my ticket back to Old Trafford."
Tosic's agent Zoran Pavlovic told the paper United had rejected the prospect of a permanent move.
"There were some offers to buy out Tosic's contract," said Pavlovic, "but Manchester United were unwilling to go for that option. Boss Ferguson is obviously counting on him in the future and so Tosic has been sent out on loan."