Smith (hamstring) will play in one more rehab game with Triple-A Buffalo on Saturday, Arden Zwelling of Sportsnet.ca reports.
Assuming Smith comes out of his third rehab game without any issues, he will rejoin the big-league club and officially return when rosters expand Sept. 1. Smith has endured a tough season between Texas and Toronto, but his versatility around the diamond will likely afford him occasional opportunities with the Blue Jays down the stretch.