The arm issue surfaced after McCutchen was knocked around in his start Saturday. The right-hander gave up seven runs on 12 hits in six innings. Since being demoted to Triple-A in late April, McCutchen has allowed 13 earned runs and 30 hits in 24 1/3 innings.
Other Minor League items of interest:
Double-A right-hander Jared Hughes was named the Eastern League's Pitcher of the Week after going 2-0 and allowing one earned run in 14 innings last week. Hughes, a fourth-round pick in the 2006 First-Year Player Draft, entered Monday leading all Minor League pitchers with seven wins.
Top pitching prospect Brad Lincoln retired the first 16 batters in his outing for Triple-A Indianapolis on Monday, but took the loss after giving up a three-run homer. Lincoln allowed just those three runs in seven innings. He finished with a career-high 10 strikeouts.
The Pirates have promoted right-hander Hunter Strickland to high Class A Bradenton (Fla)., where he will take the rotation spot left vacant when Bryan Morris was promoted to Double-A on Sunday. Strickland, whom the organization acquired from the Red Sox in exchange for Adam LaRoche last year, had allowed 28 earned runs in 43 innings with low Class A West Virginia this year.
Victor Black has been placed on West Virginia's roster and is cleared to begin his season. Black, whom the Pirates drafted as a first-round supplemental Draft pick last June, tweaked his lat muscle in Spring Training and has been sidelined since.