The January 2015 transfer window closes at 23:00 GMT on Monday night.
Serena Williams has her sights set on reaching Steffi Graf's record of 22 Grand Slam crowns after winning her 19th major at the Australian Open on Saturday.
Novak Djokovic beat Andy Murray in the Australian Open final on Sunday to win his fifth Melbourne title.
Mercedes driver Nico Rosberg is confident of going one better and claiming the 2015 Formula One Drivers' Championship after finishing second last season.
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