To make room for catcher Steve Clevenger on the big league roster, the Orioles designated outfielder David Lough for assignment Friday — another member of the Opening Day squad, and specifically the outfield that has been jettisoned during this season.

The Orioles have removed a mind-boggling nine players from the initial roster that was introduced at Tropicana Field on April 6 — and technically that number is 10.

Reliever Ryan Webb was on the April 5 roster that was submitted to Major League Baseball, but he was designated on Opening Day and traded to the Los Angeles Dodgers four days later. Webb was taken off the roster to make room for catcher Ryan Lavarnway, who was designated on May 26.

For the most part the Orioles have had to release those they have designated, meaning they’ve gotten no return for players such as pitcher Bud Norris and outfielder Delmon Young. Outfielder Travis Snider, designated on Aug. 7, still falls within the 10-day period the club has to trade, release or ask waivers on a designated player.