What level do players increasing a star level go 'on fire'?

[davewootton1964]

As the title says guys - have noticed this before - just trained a guy up to 60% and he did not go on fire?

Thanks

Dave
Golden Lion FC
Level 105

[khris]

As the title says guys - have noticed this before - just trained a guy up to 60% and he did not go on fire?

Thanks

Dave
Golden Lion FC
Level 105

Here the guide, you've to win the 5* at least
https://forum.topeleven.com/tutorial...ini-guide.html