The Calgary Stampeders have signed quarterback Drew Tate to a three-year contract extension, a source told The Canadian Press on Wednesday.

The source requested anonymity because the deal has not been finalized. The signing likely signals the end of Henry Burris's six-season stint with the Stampeders.

Tate took over the starting quarterback job from Burris late last season and led the Stampeders to wins in their last three games.

He struggled in his first playoff start, a 33-19 loss to Edmonton in the CFL West semifinal. He completed 5-of-10 passes for 99 yards with an interception before being replaced by Burris in the second half.

Overall last season he threw for 1,346 yards and eight touchdowns, while being intercepted five times.

Burris, who led the Stampeders to the Grey Cup title in 2008 and was named the CFL's most outstanding player in 2010, is reportedly due a sizable roster bonus at the beginning of February. The Stampeders can release him before then, or try to trade him to a team willing to pay the bonus or sign him to a new contract.