Hurston Waldrep will undergo further evaluation for a potential injury this week.

Waldrep’s velocity dipped significantly and he was lifted after throwing just 36 pitches during Sunday’s start for Triple-A Gwinnett. The 24-year-old has shown some flashes of potential at the highest level over the last two years, but hasn’t been consistent enough to stick in the big-league rotation. The general thought when he was drafted was that his excellent splitter would make him a quality reliever if the starter experiment didn’t work. His absence would be a hit to Atlanta’s pitching depth down the home stretch.