Less than a month has passed since the summer transfer window closed, and the winter window won't open for another three more.
But the rumors are already pouring in.
Which players will be on the move? Which teams might be interested in signing them? Keep reading for 20 players who could change clubs this January.
Earlier this month, Belgian midfielder/forward Marouane Fellaini announced the current season could be his last with Everton (Het Nieuwsblad via Daily Mail).
"I am just starting my fifth season at Everton, this will be one of my last. I have seen everything. In January or at the end of the season I will turn to another club or championship," Fellaini was quoted as saying.
Since then, Metro has linked the big-haired Belgian with Manchester United and Chelsea.
Senegalese striker Demba Ba reportedly has a £7 million buyout clause in his Newcastle contract, and Magpies manager Alan Pardew recently admitted Ba could leave the club in January (via The Guardian).
Arsenal and Liverpool have been linked with Ba, who has scored four league goals so far this season.
England winger Theo Walcott is stalling on a new contract with Arsenal, and manager Arsene Wenger has said the delay could affect Walcott's spot in the team (via The Guardian).
Walcott is reportedly holding out for £100,000 per week instead of the £75,000-per-week offer Arsenal are reportedly offering.
More recently, Walcott has reiterated his desire to stay at Arsenal and play as a striker instead of as a winger (via The Independent).
Liverpool and Manchester City are reportedly interested (via Daily Telegraph).
Rising Brazilian superstar Neymar has been the hottest name in the transfer market for some time now. Intense and prolonged speculation linked Barcelona and Real Madrid with the young striker last year, but the rumors have died down recently.
Manchester United reportedly lodged a bid for Neymar during the most recent transfer window (via The Sun).
Might Neymar at last leave Santos and move to Europe this winter?
Leandro Damiao, a 23-year-old forward, is another Brazilian being linked with a January transfer. The Daily Mirror has reported that Manchester United will rival Tottenham Hotspur for his signature this winter.
Leandro, who currently plays for Brazilian club Internacional, scored six goals for Brazil at the 2012 Olympics, the most in the tournament.
In the immediate aftermath of Ronaldo's melodramatic revelation, the Daily Mail reported that Manchester City, Chelsea and Paris Saint-Germain were interested in him. The Daily Star reported that City would bid £95 million.
It's far from certain that Ronaldo will move this winter, but it's plenty of fun to speculate.
French striker Kevin Gameiro joined big-spending Paris Saint-Germain in 2011 but has fallen down the pecking order following the arrival of Zlatan Ibrahimovic from AC Milan.
Over the summer, Sky Sports quoted PSG sporting director Leonardo as saying Gameiro could be sold.
Russian forward Andrey Arshavin spent the second half of last season with Zenit St. Petersburg on loan from Arsenal. He returned in time for the start of the current campaign but has featured only rarely for Arsene Wenger's team.
The Daily Telegraph reported that Arsenal were willing to give Arshavin a free transfer in the hopes that he could have joined Dynamo Moscow before the end of the summer transfer window. No move materialized.
Tottenham Hotspur reportedly missed out on signing Porto midfielder Joao Moutinho "by minutes" at the transfer deadline. The two clubs had reportedly agreed to a fee of £24 million (via Daily Telegraph).
Since then, Moutinho has called Spurs boss Andre Villas-Boas "one of the best coaches in Europe today" (via Daily Mirror). The two previously worked together at Porto.
Spain international forward Fernando Llorente told Athletic Bilbao in August that he would not renew his contract with the club. His current deal runs through the 2012-13 season (via The Independent).
Since then, Sky Sports has reported that Llorente will explore transfer options in January. Juventus, Manchester City, Tottenham and Liverpool were listed as possible destinations.
Manchester United reportedly tried to sell Portuguese winger Nani to Zenit St. Petersburg at the summer transfer deadline. After the deal fell apart, United instructed Nani to stop talking about his contract (via Daily Mirror).
In a separate report, the Mirror claimed Nani intends to run down his contract and leave United on a free transfer in two years' time.
Arsenal and Manchester United are chasing 19-year-old Leicester City defender Liam Moore, according to Metro.
Moore, who spent time with Bradford City on loan in 2011, has represented England at the U-17 level.
Isco, a 20-year-old Spanish attacking midfielder, scored twice in his Champions League debut for Malaga last week. Soon afterward, the Daily Mirror reported that Tottenham and Liverpool were interested in signing him from the cash-strapped Spanish club.
The Mirror also reported back in August that Manchester United were chasing Isco.
Portuguese forward Nelson Oliveira is drawing interest from Manchester United, Chelsea and Manchester City, according to talkSPORT.
Oliveira, 21, is currently playing with Deportivo La Coruña on loan from Benfica. He has earned eight caps with Portugal.
Arsenal and Tottenham are reportedly interested in Spanish forward Adrian Lopez, who has yet to sign a new contract with Atletico Madrid (via Daily Mail).
Lopez, 24, joined Atletico from Deportivo La Coruña in 2011. He has earned two caps with Spain.
Veteran defender Ashley Cole has rejected a new one-year contract offer from Chelsea (via ESPN.co.uk). His current deal expires at the end of the 2012-13 season.
Cole, 31, joined Chelsea from Arsenal in 2006.
Teenage midfielder Bryan Cristante is being linked with a January exit from AC Milan after becoming unsettled at the San Siro (via Metro).
Juventus, AS Roma and Chelsea are thought to be interested. Cristante reportedly would cost about £1 million.
Spain international defender Sergio Ramos is reportedly unsettled at Real Madrid after being left out of the Spanish champions' starting lineup against Manchester City in the Champions League (via Daily Star).
Chelsea are reportedly considering a bid in January.
Ramos, 26, joined Real from Sevilla in 2005.