ONLY three times since the UEFA Champions League was formed have both of the previous season’s finalists exited at the round of 16 stage. The structure of the competition is designed to allow the rich to become successful, so that fact should come as no great surprise. The Champions League has become the playground of a handful of clubs – in the past decade, just 11 clubs from four countries have filled the 20 final places. Liverpool and Tottenham Hotspur, the 2019 finalists, both crashed out this week, raising question marks about the relative strength of the Premier League and also the quality of the two teams. It is unlikely the sides that beat them, Atlético Madrid and RB Leipzig, will win their domestic…