James McDonald (shoulder) could throw off a mound next Tuesday.
There remains no timetable for James McDonald's (shoulder) return.
An MRI on James McDonald's right shoulder revealed only inflammation.
Pirates placed RHP James McDonald on the 15-day disabled list with right shoulder discomfort.
James McDonald allowed seven runs over five innings in a loss to the Brewers on Tuesday.
James McDonald labored through five innings but escaped with a no-decision Thursday, allowing three runs in a 6-4 win over the Phillies.
James McDonald struck out nine while allowing just one run in six innings in the Pirates' win over the Braves on Saturday.
James McDonald was lit up for eight runs -- three earned -- in 1 2/3 innings by the Cardinals on Monday.
James McDonald limited the Cubs to one earned run over seven innings Thursday in a no-decision.
James McDonald gave up four runs in two innings as the Pirates lost to their Double-A Altoona affiliate 8-6 on Saturday.
Despite some command issues, James McDonald shut out the Rays for four innings on Thursday.
James McDonald was tagged for three homers and four runs in three innings by the Orioles on Friday.
Pirates avoided arbitration with RHP James McDonald by agreeing to a one-year, $3.025 million contract.
James McDonald requested $3.4 million and was offered $2.65 million from the Pirates when arbitration figures were exchanged Friday.