You have 10 minutes to guess 25 teams. So no dallying!
Remember to tweet your scores @FourFourTwo, and challenge some friends while you're at it.
Jose Mourinho is back, after a hefty 15 days away from football since his sacking as Tottenham manager. The Special One is off to sunny southern Italy to become Roma's new manager this summer.
It's not his first stint in Italy, of course – but his two-year spell as Inter boss was so brief that no Serie A clubs make it onto this list... yet.
There are, of course, plenty of little sides to get, but let's not forget how much he loves a big occasion.
We're looking for the top 26 sides Jose loves to play, from across the various nations he's coached in, plus the Champions League.
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