The team also made three practice squad moves, signing defensive back Justin Phinisee and safety Guss Scott and releasing cornerback James Patrick.
Gabriel was obtained from Oakland on Sept. 2 after the Patriots lost their top two wide receivers from last season. David Givens signed as a free agent with Tennessee and Deion Branch was traded to Seattle.
Gabriel didn't start the first three games but then started five of the next six before playing sparingly as a backup in the next four. His season took a drastic downturn in the ninth game after he lost a fumble in a 17-14 loss to the New York Jets. He had 24 catches in the Patriots' first nine games but only one in the last four. He finished with 25 catches for 344 yards and three touchdowns.
Phinisee, a seventh-round draft choice by Tampa Bay this year, was released from Kansas City's practice squad Nov. 7. Scott, a third-round pick of the Patriots in 2004, played five games for Houston before being released on Nov. 21. The Jets signed him two days later then released him on Nov. 29.
The Patriots had signed Patrick to their practice squad Nov. 1 after he was released by Tampa Bay.