0
Two, in 2001 (Super Bowl XXXVI) and in 2003 (Super Bowl XXXVIII).
The Rams appeared in Super Bowl XIV (14), XXXIV (34,) and XXXVI (36) . They won Super bowl XXXIV. They Super bowl lost XIV XXXVI.
Tom Brady was MVP of Super Bowl XXXVI.
Super Bowl XXXIV: Dick Vermeil
Super Bowl XXXVI: Mike Martz
XXXVI (36)