Calloway was selected by the
Philadelphia Eagles in the second round, with the 28th overall pick, of the
1969 NFL/AFL draft. He played in all 14 games, starting eight, for the Eagles during his rookie year in 1969 and posted three sacks. He appeared in 14 games for the second straight year, starting 13, in 1970, recording 1.5 sacks and one fumble recovery. Calloway spent the entire 1973 season on injured reserve and was released in 1974. Calloway signed with the
Florida Blazers of the
World Football League (WFL) on July 14, 1974. He was later placed on injured reserve. Calloway signed with the
Toronto Argonauts of the
Canadian Football League in 1975 but was later released. ==Personal life==