Okay no one's said this but for me it's Sunderland. I'm playing as United, met them twice already (once in Capital One cup). Lost the Capital One game but admittedly I fielded Ben Amos and Blackett at left back and Fletcher. First PL game I win 1-0 after Kagawa scores a last minute winner but they manage to injure RVP (out for a month), Welbeck (3 weeks) AND Valencia (3 weeks). This PL game is the second one in Dec so in effect I lose them for the busy Christmas period during which I havta face Arsenal and Spurs. :/