Santana, whose minor league opt-out clause matures on Friday, has been shown a plan that could see him with Baltimore around June 18, according to manager Buck Showalter.
The plan includes one more extended spring training start, a start with Triple-A Norfolk and a start with Double-A Bowie on June 13 before being called up to the majors on June 18 or 19, Showalter told reporters Wednesday.
"Ideally, the last outing would be six innings if the other club would cooperate," Showalter told reporters. "If these three options work out, he'd be an option for us. It's one thing being able to get through it, it's another thing to have people evaluate whether it will work up here."
The plan is contingent on Santana negating the opt-out clause.
"He has got to approve it, they have to approve it," Showalter said. "So we're not there yet, but that's tentatively [the plan]."
Santana, 35, is rehabbing from left shoulder surgery. He has a career 139-78 record with a 3.20 ERA but has pitched in just 21 major league games since the end of the 2010 season due to various injuries.