Rooker’s potential injury tests A’s depth as Ginn gets first start, Perkins recalled
Brent Rooker left Oakland’s win over the Yankees with right flank/oblique discomfort and will undergo imaging to rule out an oblique strain, a condition that could sideline him for weeks; if he’s out, Zack Gelof is the likely replacement given his torrid Triple-A start, while Jeff McNeil could gain DH opportunities; J.T. Ginn will start the weekend series against the Mets after three relief appearances, with Jack Perkins recalled to provide long relief; the A’s, who took 2 of 3 from the Yankees, stay in New York for a Mets series.