Who will win the wild card? For 2010 between Steelers, Broncos, and Ravens?

Pretty much Steelers, Broncos, and Ravens all have a chance of becoming 9-7. so thats gonna be 3 tied teams for the wild card how will they decide which two teams receive the wild? And is there a chance for broncos to loose to kansas city and for ravens to loose to raiders? Cus ima steelers fan. ty