24-year-old Australian pitcher Jack O'Loughlin makes MLB debut with Oakland Athletics due to roster changes.

24-year-old Australian pitcher Jack O'Loughlin is set to make his MLB debut with the Oakland Athletics after they selected his contract. The move comes after the team placed right-handed pitcher Ross Stripling on the 15-day injured list and designated right-handed pitcher Brandon Bielak for assignment. O'Loughlin, a former Detroit Tigers minor-leaguer, has previously pitched for Triple-A Las Vegas.