The Saskatchewan Roughriders have retained a key piece of their defensive line with the signing of  defensive end Pete Robertson.

Last season, Robertson finished tied for fourth in the Canadian Football League (CFL) in sacks with nine, despite missing four games with a foot injury.

He also tallied 21 defensive tackles, one interception, one pass knockdown, one tackle for loss and a league-best five forced fumbles.

The Texas Tech product is set to return to Saskatchewan for his third season. Prior to joining the green and white, he spent time with the Seattle Seahawks, Arizona Cardinals and Washington in the National Football League.

Robertson was set to become a free agent on February 14.