One thing manager Jurgen Klopp has improved at Liverpool in his time in charge so far is the Reds' squad depth, meaning there will be some tough decisions for the German to make when all his players are available.
Roberto Firmino has been preferred as Klopp's No. 9 up front this season, but some fans may claim Daniel Sturridge should be starting when he's fit.
Klopp has frozen out Mamadou Sakho, but some fans may prefer to see the Frenchman in ahead of Dejan Lovren at centre-back.
Such decisions are what Klopp is paid to make—but imagine if he had to make them while only being allowed to pick one player from each nation?