You have five minutes to guess 23 players.
Remember to tweet your scores @FourFourTwo (opens in new tab), and challenge some friends while you're at it.
In 2016, Wales embarked on their first international tournament in a generation. It's safe to say that Europe underestimated them.
The Dragons managed to battle their way to the final four in the tournament, defending sturdily and hitting teams with a blend of pace and heart, with underdogs in their ranks.
The most expensive player of all time was among them; so was a chap without a club who scored one of the goals of the tournament.
But that's enough clues for now - we want you to name every one of the 23 who went to the Euros last time out…
Mark White has been a staff writer on FourFourTwo since joining in January 2020, writing pieces for both online and the magazine. An encyclopedia of football shirts and boots knowledge – both past and present – Mark has also been to the FA Cup and League Cup finals for FFT and has written pieces for the mag ranging on subjects from Bobby Robson's season at Barcelona to Robinho's career. He once saw Tyrone Mings at a petrol station in Bournemouth but felt far too short to ask for a photo.