Orioles center fielder Adam Jones left Thursday's game against the Kansas City Royals after a violent collision with the outfield wall while chasing a batted ball in the bottom of the first inning.
Jones initially remained in the game, but was removed in the top of the third when Paul Janish pinch hit for him.
The Orioles -- already without Gold Glove shortstop J.J. Hardy, who can't return from a strained left groin until Sept. 8 at the earliest -- can't afford to lose their franchise player for an extended amount of time as they continue to chase a postseason berth.
With one out in the first, Jones chased Ben Zobrist's ground-rule double into the left-center gap. Jones was just short of making a running catch on the ball, but as the hit one-hopped into the stands, Jones stumbled slightly and crashed into a portion of the wall that has a lighted scoreboard and advertising.
Jones fell to the ground for several moments in obvious pain as left fielder Steve Pearce and right fielder Gerardo Parra ran over to him. Manager Buck Showalter and head trainer Richie Bancells sped to the spot where Jones was on his hands and knees on the warning track.
Jones slowly returned to his feet and after being looked at by Bancells and Showalter, he remained in the game.
Jones missed two games in late May after suffering a left ankle sprain he suffered on May 28 against the Chicago White Sox. He also missed nine games in June and didn't play center field for two weeks because of a right shoulder strain.
This is the second time this season that Jones was injured hitting an unpadded part of an outfield wall while chasing a batted ball. On May 8 in New York, he crashed into a Plexiglas panel on the right-center-field wall at Yankee Stadium while attempting to run down a ball in the gap hit by Alex Rodriguez. Jones remained in that game and didn't miss any extended time.