Manchester United are joint favourites to sign Chelsea midfielder Juan Mata this month, before the transfer window closes on February 1, according to Sky Bet.
The Premier League champions are known to be in the market for creative reinforcements in January, and are currently placed at 9/2 alongside Paris Saint-Germain to secure the Spain international's signature.
Blues boss Jose Mourinho wants to keep Mata at Stamford Bridge, but as he continues to only play him sparingly, there is increasing speculation that the 26-year-old will look to leave west London in search of more regular football.
The Chelsea playmaker will have one eye on the 2014 World Cup, and knows that he needs more minutes to secure his place in Vicente del Bosque's squad heading to Brazil this summer.
Manchester United could offer Mata an escape route, with David Moyes keen to strengthen during the mid-season window, as the Old Trafford outfit look to restore some respectability to an already disappointing 2013/14 campaign.
Napoli are the next best placed team at 6/1 in the race to sign Mata, with former Chelsea interim boss Rafa Benitez reportedly monitoring Mata's situation, as he weighs up an offer to lure him to Italy to Stadio San Paolo.