Early reports have Tampa Bay sending Cleveland their first and third round draft selections.
If true, Cleveland will now own the fifth and 19th overall selections in the first round of the 2009 NFL Draft.
Over his career, Winslow amassed 219 receptions for 2,459 yards, and 11 touchdowns.
In 2008, while missing time due to suspension and a staph infection, Winslow posted 43 receptions for 428 yards and three touchdowns
The Browns released a statement thanking Kellen for his service to the team, but mentioned their interest in looking to "infuse" more talent and depth to the team.
Winslow joins a Buccaneers team that is in a sort of rebuilding mode after releasing many veterans, including Pro Bowl linebacker Derrick Brooks.
Winslow is only a five-year pro and has many good years ahead of him, but has to remain healthy and act more maturely in the future. Tampa Bay is convinced that he can do that.
Winslow is known for his fiery attitude and competitiveness but has also been labeled as somewhat of a whiner and complainer.
In any case, he gives Tampa Bay a weapon over the middle and a premier level outlet for whoever the Quarterback ends up being.