Beachy was placed on the disabled list on June 16 last year after undergoing successful Tommy John surgery to repair the partially torn ulnar collateral ligament in his right elbow.
"In my experience with those Tommy John surgeries, if you follow the rehab and you follow what they ask you to do, you usually come back at 12 months," Gonzalez said. "He's right there."
Beachy's absence has opened the door for right-hander Julio Teheran to move into the likely role of fifth starter. Teheran made his fifth Grapefruit League start Sunday against the Mets. Teheran entered Sunday having allowed only two runs and four hits in 14 innings of work.
"He's pitched great," Gonzalez said. "If we gotta break camp tomorrow, he's our fifth (starter). He's pitched that well. We're going to give him an opportunity, I think, barring something crazy."
Steve Dorsey is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.