Select a drill which is very easy. It will only use 0.75% condition. Do it twice.
Or only train those players you aren't going to use in the next match anyway.
I think it will count.
Don't repeat drills, it won't give much bonus.
You also have to get some good combinations. Warm up- set pieces- defending crosses- fast counterattack (tho I've not unlocked defending crosses) is a perfect training for defensive formation playing managers.
AH AH — manager of Atlético Kolkata. Named in honour of my hometown club, Atlético de Kolkata, which won the inaugural edition of Indian Super League in 2014.