The constant transfer speculation over footballers is fun, of course - but did you know you can bet on it, too? Most of the big, high-profile moves come with betting odds, and we've taken a look at the transfer prospects for some players hitting the headlines this summer, to find out who will go where, and give you the best possible return, on bets for "club at end of transfer window, summer 2015."
The Belgium midfielder has created a good reputation over a number of years, offering dynamism and a good eye for a pass from midfield for his club since 2012, Zenit St. Petersburg. However, it might be time for him to move on, especially as he is 26, supposedly the prime age for a footballer.
Chelsea, as ever, is in the market for a midfielder with Witsel's qualities, and doubtless he would play well alongside Cesc Fabregas, and might even be a replacement for Oscar should the Brazilian move to Juventus. It would be interesting if he lined up against Leicester City, the ankle of whose defender, Marcin Wasilewski, he stood on and broke back in 2009, almost ending the Pole's career. However, if, as seems more likely, Oscar remains in west London, we would expect Witsel to move to Juventus.
Paris Saint Germain could be seen as a sideways step from Zenit, while Milan is a few years off winning major trophies again, and a player of Witsel's ambition doesn't have time to spend helping a club rebuild.
Top Bet: Witsel 3/1 to move to Juventus with BetVictor
The German World Cup-winner who has spent his whole career thus far at Bayern Munich is staying at the club, according to Bayern spokespeople, however they also did not confirm Bastian Schweinsteiger's move to Manchester United until it happened.
Müller, an attacker who is certainly not the most stylish on the pitch, but contributes a great deal in build-up play and brings an excellent ability to ghost into the box and finish accurately, will likely either stay at Bayern or move to United. He has never seemed a perfect fit for Pep Guardiola's tactical system, and so may decide to try his luck at pastures new, especially working for former manager Louis van Gaal.
All other clubs seem to be making up the numbers in this betting market, and the positive signs towards Müller moving to United are all there. The player is keen on the idea, the buying club is raising its bid, and this looks like it could happen.
Top Bet: 5/2 with Unibet for Müller to move to United
The Italian striker has been at Inter, Manchester City, Milan and Liverpool without showing anything like the ability which media hype and the words of his agent, Mino Raiola, have suggested he is capable of. To be fair to Balotelli, Liverpool boss Brendan Rodgers, having signed him close to last year's transfer deadline, intimated that he was the only available striker, and not his first choice.
Balotelli needs to be at a club where he is not just valued, but loved unconditionally. He has not shown a propensity to travel well, which makes his agent's constant hawking of him around Europe seem ever more hopeful. So poor was he for Liverpool last season that it is even conceivable that the club will be unable to sell him. If he does go, bet on him leaving for an Italian club below the elite three, for a cut price.
Sampdoria has been a great club in the past, getting to the 1992 European Cup final. There are clues that Balotelli might be happy there, particularly looking at the way the club resurrected the career of Antonio Cassano in his short time there alongside Giampaolo Pazzini. Bet on a move to Sampdoria.