I'm just wondering because S.F. won the world series a few months ago. If S.F. wins the super bowl, has another city ever won both back to back?
3 actually. (I had to look it up)
Jets and Mets in 1969 (When the Jets still played at Shea)
Steelers and Pirates in 1979 (Even I rooted for the Pirates that year)
Patriots and BoSox in 2014