The NFL trade deadline is Oct. 28.
"They are getting a ton of calls on him," Rapoport said. "With just one win, I'm told they are open to anything even though they love him as a player."
Jackson is in his third season with the Buccaneers after spending seven years with the San Diego Chargers. The 31-year-old has 25 catches for 344 yards and two touchdowns this season for Tampa Bay.
In 2013, Jackson had 1,224 receiving yards and seven touchdowns on 78 catches.
The Buccaneers drafted wide receiver Mike Evans out of Texas A&M with the No. 7 pick in May's NFL draft. Evans has 258 yards on 21 catches with two touchdowns so far in his rookie season.
- Molly Geary