Once a player from bot or unmanaged team gets an injury they become more dangerous and often score on you despite you dominating the match, my 2 draws this season happened that way, today I watched one of my friends almost get drawn while he was up 3-0 dominating and long and behold an injury to the other team and boom boom two goals, he had to sweat it out!
I put my theory to the test yesterday, I was up 2-0, got an injury and decided not to sub him, I scored 3 more goals, so it might even work with manager present if you don't sub the injured player.
Anyway, that's my story and sticking to it!
Injury bug!