"He's moving in the right direction," Gibbons said.
Morrow, who's on the 60-day disabled list, would pitch out of the bullpen, because there's simply not enough time for him to build up physically for a starting role.
The addition of Morrow, who's yet to make it through a full season as a starter, could provide a boost to the Blue Jays' bullpen, which has registered the fifth-highest collective ERA (3.98) among American League teams in the month of August, and the fourth-highest on the season (4.22).
The Blue Jays have a $10 million option on the 30-year-old's contract for next season that includes a $1 million buyout.
Jamie Ross is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.