Football: Tottenham Hotspurs, England (I don't follow football particularly closely, I'm going to make more of an effort this year)
Rugby: England (I used to follow Rugby Union too which would see me follow Saracens or Harlequins quite closely as they were fairly local teams to me)

That's about it, I watch motor sport but don't have a personal fandom for any particular drivers/team though I just enjoy watching the stuff. Particularly I enjoy the WRC.