• Shortstop prospect Didi Gregorius is about a week away from throwing again, manager Kirk Gibson said on Tuesday. The 23-year-old, who was acquired in December in the three-team trade that involved Trevor Bauer, sustained a slight strain of the ulnar collateral ligament area in his elbow in December.
Even though he isn't throwing the ball around the diamond yet, Gregorius has started swinging the bat again, among other activities.
"We've been working on baserunning, and he's already started to hit, but in a short time he'll be throwing a ball," Gibson said. "We just want to err on the side of caution."
• On Tuesday, one day after being struck by a Zeke Spruill pitch during batting practice, Martin Prado was back on the field, in uniform and going through usual workouts.