Help! My 6-stars 18yo striker is super slow at training

[gogs67]

Only train SA on 5* or lower, it's just not really worth the amount of Greens needed (unless you have hundreds and hundreds to spare) to start SA training on a 6* player.

[lucad88]

Only train SA on 5* or lower, it's just not really worth the amount of Greens needed (unless you have hundreds and hundreds to spare) to start SA training on a 6* player.

I'm not using any greens - just the normal training they receive from games and some training between games to "burn" the extra condition left.

What I don't understand is that other young players of mine routinely get +3-6% to their abilities after each game in which they are playing, whereas this one does not get any ability point even if I pause the Special Ability training.

[gogs67]

I'm not using any greens - just the normal training they receive from games and some training between games to "burn" the extra condition left.

What I don't understand is that other young players of mine routinely get +3-6% to their abilities after each game in which they are playing, whereas this one does not get any ability point even if I pause the Special Ability training.

If you are only going for SA using 'normal' training then I'd stop with this guy. He is what is called a 'slow' trainer, not too common but there are enough out there to be annoying.
I train up 4 or 5 18yo's every season to 6* then just let the game keep them at that for about 3 seasons then they slow down. Every couple of seasons I'll get a donkey like yours that trains about 60% of the others. I'd keep him, forget about the SA and just let him gain naturally and sell at the end of the season, but maybe think about a replacement. Chances of getting 2 slow trainers in a row are pretty slim.