the teams that play in Europe and in the cup must lose a lot of energy!!! but only here the players stay with 95% energy, in real football was something like this mentioned???

PS.

Or if it is applied, I lose very little energy!!! very few teams have reserves, the rest are played at the game facility which confiscates very little energy for the games played in Europe... it seems to me or is it not really realistic?

I believe this too need to be work on, 

But logically I suggest player losing much energy  per match

And then recover over night better. 

Example : player with 100 energy have somewhere 80 to 90 energy left

After single match, this level of energy drain adjust by fitness level.

Such that it is risking the player for injury or weak performance at 80 energy

Replaying him in same day. But recover faster. 80 = 10 to 20 energy gain also

Affect by natural fitness into the next day.... Somewhere here to make the big

Boys and stingy manager having to bring in options for next game if have double

Fixture clash in a day. For now most just skip training for the player to recover whilst 

Being able to play double game in a day and play again in follow up fixture next day

@Landlord +++

+1, there should be greater lost of energy, not realistic that players play 2 games per day without bigger energy drain

Dois ou três jogos no dia quebram toda a energia do time, e isso faz muita diferença nos jogos contra times que jogam uma vez no dia.

@nick there are a lot of real players who play over 50 matches every season, especially from premiership

I have 3* medical center and used already 25 different players this season, meanwhile your center is 1* and you used only 17, and here we have my condition % - it is still lower than yours.

@fletcher90 it is also not realistic to play all the season in 1 month, think..

i play cups every season and i never keep 100% unlike my opponents, who only play league matches.