Downs aggravated a right ankle injury on Saturday night in Boston and Gaston has indicated that the club might consider just shutting the left-hander down for the season's final two weeks. Gaston said Downs underwent an X-ray on his foot on Tuesday, though the results weren't immediately known.
Downs originally sprained his right ankle while backing home plate in a game against the Tigers on Aug. 13 in Detroit. The 32-year-old Downs rested the foot for a week, but avoided a trip to the disabled list. In 66 games for Toronto this season, Downs has a 1.78 ERA with 57 strikeouts and 27 walks over 70 2/3 innings.
On Tuesday, catcher Gregg Zaun started in place of Barajas, who has missed the past three games for the Blue Jays due to a sore left hamstring. Barajas has hit .249 with 11 home runs and 49 RBIs in 104 games for Toronto this season.
"Hopefully, it won't be too long for him," Gaston said. "There's no sense in aggravating it if we can take a couple more days. I know the season is not that much longer, but we could still use him the rest of the way."
Jordan Bastian is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.