Ruben Dias is an imperious centre-back. But when you're usually faultless it becomes incredibly glaring when cracks begin to show.
Dias is incredibly important to Manchester City. His return from injury last season directly correlated with the start of the unbeaten run that secured the Premier League title over Arsenal.
If not for Dias, the Blues likely would not have won the treble. But past success does not guarantee future success and nor does it earn you an unquestioned spot in Pep Guardiola's side.
Just ask Aymeric Laporte. Quality cannot be forgotten but form must be taken into account and Dias has been far off his lofty high standard in recent weeks. ALSO READ: Rico Lewis teased by Man City teammates after England call ALSO READ: All about the City Fans Footballer of the Year award It was his reckless sliding tackle against Chelsea which ensured the match ended in a draw and he put City in a perilous position against RB Leipzig on Tuesday.