Real Madrid are being heavily linked with a move for Juventus midfielder Arturo Vidal. The Chilean is believed to be considering his long-term future at Juventus, as he believes he has taken the club as far as he can in Italy - and wants a new challenge.
But despite popular belief Real Madrid do not float atop a sea of cash. If they want to splash out on Vidal, they are going to need to sell somebody.
The prime candidate is Sami Khedira.
He missed most of last season with a knee injury but even before then he was not a regular first-team member in the decision process for Carlo Ancelotti.
Last summer Arsenal gained from this process. Firstly, their local rivals Tottenham lost their star player in Gareth Bale, who joined Real Madrid for a world-record fee. Then, to counteract the purchase, Madrid sold German maestro Mesut Ozil to Arsenal of course.
Ozil arrived on the crest of a wave. Arsenal fans, starved of big name signings in recent years, were pleased to see such an outlay on a big name player.
But toward the middle and end of the season Ozil struggled. The physical nature of the Premier League seemingly taking its toll on the player - the lack of a winter break was also highlighted as a potential reason for his apparent plight.
Could a similar situation this summer help Ozil find his feet again?
With Khedira available, Arsenal have been mentioned as a possible option for the bullish German international - said valued at around £15 million.
It is a similar situation as the one that saw them sign Ozil last summer and the arrival of Khedira could be a real boost for Ozil. The pair are good friends. In fact, when Los Blancos sold the player in September last year, Khedira was very vocal in his disappointment in losing a friend at the club.
Signing Khedira would strengthen the Arsenal centre midfield role - with Mikel Arteta and Mathieu Flamini replaceable, that does not seem a bad idea.
In the meanwhile it might also galvanise their most expensive signing. Surely a deal worth trying.