Diamondbacks' Josh Collmenter: Nearing return to majors

Collmenter (shoulder) will start for Triple-A Reno as part of his rehab assignment on Tuesday, and according to manager Chip Hale, could return to the majors by this weekend, Nick Piecoro of AZ Central Sports reports.

Collmenter struggled at the start of his rehab assignment at High-A Visalia, where he threw for a 10.57 ERA in 7.2 innings pitched. Since then, he's been doing better at the Triple-A level, pitching 6.1 innings for one earned run, three strikeouts, and four walks.