PHOENIX — San Francisco Giants left-hander Noah Lowry had an MRI today after feeling a tingling sensation in his injured forearm.

Lowry had planned to throw off the mound today for the first time since his surgery six weeks ago, but scrapped that plan in favor of the exam.

Manager Bruce Bochy declined to call it a setback and said he expected Lowry to throw tomorrow, although he didn't know if it would be off the mound.

Lowry had surgery on his left forearm on March 7. The Giants had hoped he would be back in the rotation by the end of April, but Bochy said he would proceed with caution.

Lowry was 14-8 last season, leading the Giants in victories.