Fernando Tatis Jr.'s surgically repaired left wrist hasn't progressed to the point where the electrifying All-Star shortstop can start swinging a bat, general manager A.J. Preller said Tuesday.

Tatis had a three-month follow-up exam in Arizona on Monday with Dr. Donald Sheridan, who operated on his broken wrist in mid-March.

The MRI exam "continues to show healing," but not enough for the doctor to "give a full green light," Preller said.