Holmes (fibula) will begin a rehab assignment with High-A Brooklyn on Saturday.
Holmes has been ramping his throwing program up and has been cleared to try things out in a game. The veteran hurler posted a 2.39 ERA, 1.10 WHIP and 45:18 K:BB through 52.2 innings before going down in mid-May with a fractured right fibula. Holmes is a trade candidate and should be able to return to make at least one start before the Aug. 3 deadline.