Radamel Falcao raised plenty of eyebrows when he joined Monaco from Atletico Madrid last summer, and is another who could thrive at Chelsea.
Considered one of the world's best strikers, Falcao suffered a season ending injury a few months back that looks set to rule him out of the World Cup.
But the Colombian will no doubt be on Mourinho's shortlist looking ahead to next season, who will know him well from his time managing in La Liga.
Not to mention Chelsea fans who will recall his superb hat-trick over them for Atletico Madrid in the European Super Cup a couple of years ago.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms