2. Jose Mourinho
What can you say about Jose Mourinho that hasn't already been said?
The Portuguese will end his career, potentially, as the greatest coach of all time.
Fiercely competitive, charismatic, a master man-motivator - Mourinho is a born-winner.
He announced himself to the world by winning the Champions League title with FC Porto in 2004, before enjoying great success with Chelsea, where he won two Premier League titles.
Mourinho won two more league titles with Inter Milan - and another Champions League winners' medal - before earning a move to Real Madrid.
Although he failed to win La Decima, he did lead Los Blancos to a league title with a record points' tally.
He's now back at Chelsea, hoping to become the first manager to win three Champions League titles with three different clubs.