Boyd (triceps) was cleared to begin throwing off a mound last week and is expected to begin a rehab assignment in early August, Chris McCosky of The Detroit News reports.

Considering Boyd has been on the shelf since mid-June with left triceps tendinitis, he may need two rehab starts in the minors to ramp up his pitch count before Detroit activates him from the 10-day injured list. A firmer target date for the start of his rehab assignment likely won't be available until he advances to facing hitters in live batting practice.

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