Colts' Brazill suspended four games
Neither the Colts nor the league said what Brzill tested positive for. He will be eligible to return to the active roster following Indy's game Sept. 29 against Jacksonville, though he will be eligible to practice at training camp and will be able to play in all four preseason games.
A team spokesman said the team would not comment on the suspension.
As a rookie last season, Brazill had 11 receptions for 186 yards and one touchdown.