More than ever before, squad depth has become a vital ingredient for Premier League sides - especially if they harbour any hopes of winning the title.
With Covid wreaking havoc on football last season, clubs used more players than ever. While we're hoping for and expecting an improvement on that front, clubs have learned their lessons this summer and moved to enlarge their squads.
After a busier-than-usual summer transfer window, Sportsmail looks at the strength in depth of the Premier League's traditional 'Big Six'.
MANCHESTER CITY
MAJOR SIGNINGS: Jack Grealish (Aston Villa, £100m), Scott Carson (Derby, free)
MAJOR DEPARTURES: Angelino (RB Leipzig, £16m), Sergio Aguero, Eric Garcia (both Barcelona, free), Jack Harrison (Leeds, £11m)
Manchester City are the team to beat this season having finished 12 points clear as champions last time out, but there is a nagging feeling Pep Guardiola might have left himself a little bit short in terms of his squad size this season - especially up front.