Santana, who ceased his mound work early last month after experiencing soreness in his surgically-repaired left shoulder, threw a bullpen session Wednesday at the team's Spring Training complex in Port St. Lucie, Fla. Once he throws two consecutive sessions without discomfort, Santana will begin working to increase his arm strength to the necessary level.
Barring another setback, that would put him on track to return sometime in August. But the Mets remain cautious in their discussions of potential timelines.
"The schedule," general manager Sandy Alderson said, "has been somewhat unpredictable."
More heartening to Alderson is the progress of David Wright, who swung off a tee and participated in a soft-toss drill for the first time on Friday. Wright, who has been on the disabled list since May 18 with a stress fracture in his lower back, may begin rehab games next week, with the goal of returning immediately after the All-Star break.
"I think we're all encouraged by what he's doing," Alderson said. "He hasn't run into any rough patches at this point."
The Mets offered little new on first baseman Ike Davis, who continues to rehab from a bone bruise in his left ankle and continues, in Alderson's words, to do "all the things, short of running, that he can do." Davis plans to receive a second opinion on the test results he received last month, though it remains possible that he will require season-ending surgery.
"I hate to characterize it as better," Alderson said of the ankle. "It's certainly not worse."