Claim: Charles Haley was a player for both the San Francisco 49ers and Dallas Cowboys.
Evidence: Charles Lewis Haley -LRB- born January 6 , 1964 -RRB- is a former American football linebacker and defensive end who played in the National Football League -LRB- NFL -RRB- for the San Francisco 49ers -LRB- 1986 -- 1991 , 1998 -- 1999 -RRB- and the Dallas Cowboys -LRB- 1992 -- 1996 -RRB-.