SANTA CLARA – Former New England wide receiver Aaron Dobson worked out for the 49ers on Tuesday, according to a source.

Dobson, 25, caught 53 passes for 698 yards and four touchdowns in 24 games during his three injury-plagued seasons with the Patriots. It is not believed that a signing is imminent. Dobson has reportedly also worked out for Philadelphia and the New York Jets.

His best season came as a rookie when he caught 37 passes for 519 yards. Dobson sustained a stress fracture in his foot as a rookie but still appeared in 12 games. He had a season-ending hamstring injury in 2014 after appearing in four games. He sustained a high ankle sprain last season and appeared in eight games.

Dobson (6 foot 3, 205 pounds) was among the Patriots' final round of cuts before the start of the regular season last week. Dobson entered the NFL as the Patriots' second-round draft pick (No. 59 overall) in 2013 from Marshall.

The 49ers on Tuesday waived wide receiver Chris Harper, also among the final cuts with the Patriots, and re-signed running back DuJuan Harris. Harper was promoted from the 49ers’ practice squad for the season opener on Monday night against the Los Angeles Rams.

The 49ers currently have five receivers on their 53-man roster: Torrey Smith, Quinton Patton, Jeremy Kerley, Rod Streater and rookie Aaron Burbridge.