Complex sentence: San Francisco's "Million Dollar Backfield" was disbanded before it could win a championship in 1957 when John Henry Johnson was traded to Detroit, the backfield of Tittle, Perry, and McElhenny remained intact through the 1960 season.
Split into simpler sentences: San Francisco's "Million Dollar Backfield" was disbanded before it could win a championship in 1957, when John Henry Johnson was traded to Detroit. The backfield of Tittle, Perry, and McElhenny remained intact through the 1960 season.