i didn't watch this match but quite shock after see the result.
my opponent got 3 red cards, not to defenders, but the strikers and winger.
i guess he play high pressing with hard tackling, that's why the strikers with low tackling skill also will do the tackling and end up of booking.
i'm feel very sorry for him anyway because his key attacker was suspended for his next derby Manchester match and end up draw.
so, this is the way how to get red cards