Aston Villa warned over Nicolas Jackson discipline after half time hooking

Aston Villa have been warned that Nicolas Jackson's discipline is an "absolute disgrace" after the record signing was taken off at half time. The forward was hooked during the game, and the criticism followed on talkSPORT. Villa are the ones who have to deal with it now, since Jackson arrived as their record buy. The warning is about his conduct on the pitch, not his ability. Nothing in the source suggests a ban or a further punishment.