The San Francisco 49ers have announced the promotion of WR Chris Harper to the active roster. To make room, the team has released WR Keshawn Martin. WR Mose Frazier has been signed to the practice squad to take Harper's place.
Harper was promoted to the active roster just prior to the 49ers' September 12 matchup against the Los Angeles Rams. He was waived the following day and then resigned to the practice squad on September 15.
Martin was signed by the 49ers on September 27 and appeared in one game this season. He only played on special teams during that appearance, returning two kickoffs for 37 yards.
Frazier was one of two receivers that the 49ers worked out recently, per Adam Caplan of ESPN. The other was Antwan Goodley.
Frazier was signed as an undrafted free agent by the Denver Broncos in May and then waived by the team on September 3. He joined the Bronco's practice squad in October but was waived on November 4. Frazier played college football at the University of Memphis.