CUP LEVEL 12 SPECIALIST (winner: Season 8 level 8, Season 11 level 11, Season 12 level 11; finalist: Season 13 Level 12)
They won't play in the match despite being on the formation. His own players will fill the spot. You have to manually remove them and when you don't do it the game automatically helps you fill the position with the best player in you team, this is also the case for injuries and red cards.
CUP LEVEL 12 SPECIALIST (winner: Season 8 level 8, Season 11 level 11, Season 12 level 11; finalist: Season 13 Level 12)