Claim: The Boston Bruins won the Stanley Cup in the 19490 -1941 season by beating Toronto four out of seven games then beating Detroit in a 4-0 series sweep.
Evidence: The 1941 Stanley Cup Finals was a best-of-seven series between the Boston Bruins and the Detroit Red Wings. Boston defeated the Toronto Maple Leafs in a best-of-seven 4–3 to advance to the Finals. In the third best-of-seven series, Boston became the first to sweep the series in four games.