Saskatchewan Roughriders’ quarterback Trevor Harris was a full participant at the team’s closed practice Thursday, according to head coach Corey Mace. “It was good to see him back out here doing his thing,” Mace told reporters after practice. “We’ll look at the tape and make the decision today.” Harris took a hard hit to the head in the final minute of the first quarter of Friday night’s game in Toronto against the Argonauts. There was a 15-yard roughing the passer penalty called on the play and Harris remained under centre to finish the game. Through two practices this week, the team has listed Harris with a head injury and an illness. Mace said Wednesday Harris’ absence from practice was concussion related but that he had cleared nearly all protocols to be back on the field Thursday. Despite being a full participant in practice, Harris’ availability remains questionable for Saturday night when the Riders host the B.C. Lions. “Truthfully, it might be a game time decision,” Mace said. “Today was a big one. We played it smart and we want to make sure we’re taking care of it.” “But to have him come back out here was big time for us,” the head coach added. To start the week, back-up Jake Maier was taking reps with the first team offense. He said he is prepared if Harris is unavailable this week. Saskatchewan takes on the B.C. Lions at home Saturday. Kickoff is 5 p.m. at Mosaic Stadium.