were crowned champions of the Premier League last season, but are they really the best team?
Despite league tables at the end of every campaign ranking teams by how they performed over the previous campaign, is there any way a league table could lie?
After all, this time last year Leicester City were Premier League champions, but it was arguable whether they were indisputably the best team in England, and soon after they found themselves struggling near the foot of the table.
That's where the Elo rating system comes in.
Originally a method to rate and rank chess players, the Elo system has since been adapted to a host of other sports - including football.