With 25 goals in 30 league games, it's fair to say that La Liga's second-leading scorer, Diego Costa, is in excellent form.
As such, the Brazilian-born Spanish international has attracted plenty of attention from other suitors, including Chelsea.
Costa is a hard-working striker built from the same no-nonsense mould as Didier Drogba. He grew up playing on the streets rather than in an academy, so he is more than capable of dealing with physical Premier League defences. He is a very angry man, and Mourinho likes a player with a bit of passion!
According to The Telegraph's Matt Law, Costa's buyout clause at Atletico Madrid amounts to £32 million, which Mourinho could raise by selling Romelu Lukaku and Damba Ba.