REGINA — The Saskatchewan Roughriders signed Canadian offensive lineman Dan Clark to a two-year contract extension Tuesday.

The deal keeps the six-foot-two, 310-pound Clark with Saskatchewan through the 2019 season. He was eligible to become a free agent later Tuesday.

Clark, 29, of Regina has sent the past five seasons with the Riders. He has appeared in 29 career regular-season games, four playoff contests and the `13 Grey Cup since joining the club.

On Tuesday, the Riders also released American offensive lineman Derek Dennis, who signed with them last year as a free agent.

The six-foot-three, 345-pound Dennis — the CFL’s top lineman in 2016 with Calgary — appeared in 15 games with Saskatchewan last season.