Manager John Schneider said Garcia (elbow) threw a bullpen session Friday, Arden Zwelling of Sportsnet.ca reports.
Garcia hasn't pitched in the big leagues yet this season after undergoing a cleanup procedure on his elbow last September. He was sent out on a rehab assignment earlier this month but experienced a setback after just one outing. Garcia threw 30 pitches in Friday's bullpen and will look to avoid further issues, and he could make his return to Toronto's staff as soon as next week.