Hawpe was released earlier this month by the Colorado Rockies. He'll report to Class A Charlotte of the Florida State League.
Hawpe was one of the cornerstones on the Rockies' 2007 NL championship team and a first-time All-Star last season. He hit .255 with seven homers and 37 RBIs this season with Colorado.
The move was announced before Tampa Bay's game Friday night against the Boston Red Sox.