Player Happiness - Playing time and exhaustion

[Drenzul]

This problem likely only exists for the bigger clubs that play 60ish games a year, but basically I've got players
who have played 40+ games including all the important games complaining about lack of game time.

Which is daft.

A quick fix for this would be implement a simple formula based on a player's natural fitness and age, so if a 
player is either hitting that OR his agreed playing time its fine. 

Ideally we'd also have a fix for how much playing time to not be based almost entirely on % of games played.
and reflect this somewhat as well. A star-player at a club who plays 40 game a year should expect to play a 
greater % of games than one at a club who plays 60 games a year. 

For example in my case, I managed to sign Mbappe for Arsenal on a free, happy days... but hes currently moaning
about game time having played in 41 games + 3 as a sub including missing a month with injury. Literally as 
soon as you introduce any important player or star player it seems near impossible to keep them happy and fit
for any clubs playing lots of games.

[Abdullah Patel]

This is something which would be more bug than feature request, the feedback is part of internal database for our design team to consider. Thanks for raising this with us