The team waived the former U.S. Olympic track star on Saturday.
Roster cuts tracker
NFL teams trimmed their rosters to 53 players on Saturday. Around The NFL reports on each team's moves. READ
Pure speed makes the 24-year-old Demps an intriguing waiver-wire offering, but the 5-foot-7 jitterbug is too small for a big backfield role. Tampa is primed to enter September with Doug Martin leading the way ahead of Bobby Rainey, Mike James and pending IR-recall candidateCharles Sims, who recently underwent ankle surgery.