Showalter said that he's considering keeping a 13-man pitching staff and having a short bench, especially once Machado returns. … Right-hander Dylan Bundy will begin throwing breaking balls for the first time since last year's Tommy John surgery in a bullpen session Wednesday . … Left-hander Troy Patton will start his minor league rehab assignment Wednesday at Norfolk. He will finish an inning Wednesday, take a day off and then pitch again Friday. … Nelson Cruz is the second Orioles player to drive in at least one run in each game of a four-game series at Fenway Park. Frank Robinson also did it in 1966. … Double-A Bowie first baseman Christian Walker was named Eastern League Player of the Week this past week. Walker, the Orioles' fourth-round pick in 2012, hit .419 (8-for-19) with a triple, two homers, six RBIs and five runs scored over the week.