Six minutes on the clock, 28 players to guess.
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With Barcelona stuttering early on in the title race this season, this could well be a La Liga season decided by the head-to-head record between the capital clubs.
Real Madrid and Atletico Madrid are no strangers to silverware and as recently as 2016, they battled for the most prestigious prize of all. With European glory on the line, it took a penalty shootout to send the Champions League title to the Bernabeu.
Both managers are in the same jobs - though Zinedine Zidane took a sabbatical for a bit. Many of the same players are still there and as ever, the rivalry is as fierce as ever.
Kick-off in the Madrid derby is from 8pm on LaLigaTV this Saturday. It's not one to be missed.
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