Manchester United have been linked with Frenchmen Franck Ribery and Patrice Evra, although they may face competition for both players.
Marseille's Franck Ribery says Man Utd are interested in signing him
Marseille midfielder Ribery, 22, says Tottenham are also keen to sign him.
"My agent has spoken to United's directors and Spurs have contacted Marseille," Ribery told the News of the World newspaper.
Frederico Pastorello, the agent of Monaco defender Evra, 24, says the player is being tracked by Inter Milan.
"United and Inter are extremely interested in landing Patrice in the transfer window," said Pastorello.
"Both have the same chance of getting him and the player has a decision to make."