Diaz (elbow) said he felt "really good" while facing hitters in live batting practice Sunday, Jack Harris of the California Post reports.
The veteran closer took the mound against live batters for the first time since he underwent surgery in April to remove loose bodies from his elbow. Diaz told Fabian Ardaya of The Athletic that he was pleased with his velocity during the throwing session, and he's hopeful to begin a minor-league rehab assignment in the near future. The 32-year-old is aiming to be activated from the 60-day injured list shortly after the All-Star break.