The Bengals waived Rigg on Tuesday.
Rigg caught a three-yard touchdown during the Bengals' preseason finale, his only catch of the preseason, but he didn't do enough during training camp to land a spot on the team's initial 53-man roster. The 6-foot-6 tight end signed with Cincinnati in May as an undrafted free agent out of Kentucky, and he may land on the practice squad if he clears waivers.