The 2018 fifth-rounder failed to make the Colts' 53-man roster out of training camp, but was promoted from the practice squad in December, only to record 10 total snaps across three games. An intriguing athlete in his own right (42.5-inch vertical, 134-inch broad jump and 4.46-second 40 at his pro day), there's a wide range of possibilities in regard to Fountain's 2019 roster status, as the 23-year-old could catch on as the No. 4 or 5 receiver with a good showing during training camp. Of course, if the opposite were to occur, a bevy of names such as Zach Pascal, Deon Cain, Marcus Johnson and Chester Rogers could push Fountain off the roster entirely for a second consecutive season.