Rodriguez (4-2) allowed seven runs on eight hits, including four home runs, while striking out six over 5.2 innings in Thursday's 7-5 loss to Baltimore.
The results clearly were the worst of the season for Rodriguez, who hadn't allowed more than three earned runs in any of his previous nine starts. The left-hander had pockets of effective pitching Thursday but made too many mistakes and the Orioles were all too happy to capitalize. Rodriguez retired 15 of the first 19 batters he faced, but unfortunately two of those he didn't retire hit mistakes over the fence. Two more pitches up in the zone in the sixth inning resulted in homers, and he was yanked with Boston down 7-1. Rodriguez, whose ERA climbed to 3.54 after the outing, is scheduled to pitch next Wednesday in New York against the Yankees.