10 minutes on the clock, 100 clubs to guess - some appear more than once, of course.
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Beating the current Premier League champions is laying a marker for your ambitions - proving you can fight with the best. It's not like boxing, in which the winner takes the belt but it certainly feels like that in some situations.
Just ask Ralph Hasenhuttl, who fell to his knees at the end of a long, hard 90 minutes against Liverpool last night.
Ask anyone who beat Chelsea that season that they dropped to 16th in the league under Jose Mourinho, with more and more candidates lining up to chalk a win against such a big side. Or the Manchester United side who ended the Invincibles' run, prompting Cesc Fabregas to lob pizza at Sir Alex Ferguson.
It may not mean much come the end of the season but in the moment, a win against the champions means everything. How many of the last century can you recall?
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FFT'S ALTERNATIVE AWARDS 2020 Who won the Masterclass, Disasterclass, Breakthrough, Comeback and Hero of the Year?
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