NBA Championship(s): Boston Celtics (1964, 1965, 1966, 1968, 1969)
NCAA Championship(s): Ohio State Buckeyes (1960)

While Ohio State's 1960 National Championship was a different story, Larry Siegfried was just another beneficiary of the Bill Russell/John Havlicek multiple chip run. Wait, check that. Havlicek's teammate on the Buckeyes was in fact Siegfried. Man, dude always plays second fiddle and reaps the rewards wherever he goes.