LOS ANGELES -- Reliever Corey Knebel has dealt with multiple serious arm injuries in the past. The Dodgers hope the right-hander isn’t dealing with another one.

Knebel was removed in the ninth inning of the Dodgers’ 6-1 loss to the Padres on Friday night with a right triceps injury. He felt discomfort in his arm after missing wide with a fastball against Eric Hosmer. Knebel immediately grimaced, prompting manager Dave Roberts to jump out of the home dugout. After a short discussion on the Dodger Stadium mound, Knebel was removed from the game.

“He felt some uncomfortable sensation or something in his upper triceps,” Roberts said. “Obviously, as a pitcher, you feel something that isn’t normal, it’s a red flag. So he was smart enough to get out of there at that point in time.”

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Knebel was acquired from the Brewers this winter and has been a bright spot for the Dodgers out of the bullpen. He has regained some of the form that made him an elite reliever in Milwaukee. In a short period of time, the Dodgers have trusted him in late-game situations, even handing the ball off to him in the ninth inning to close out a game.

In eight appearances, Knebel has a 4.50 ERA and has struck out nine over six innings of work. Knebel will undergo further testing on Saturday. Roberts wasn’t sure if the injury will force Knebel to go on the injured list.

“I didn’t even want to go out to the mound and see what was wrong,” said Dodgers catcher Austin Barnes. “He’s such a great guy, and he’s throwing the ball so well. We love having him in the clubhouse. Hopefully, he’s all right … Hopefully, he comes back soon.”

If Knebel is forced to go on the injured list, it’ll be yet another blow for the Dodgers. Los Angeles currently has five players on the injured list, including utility player Zach McKinstry, who was placed on the 10-day injured list on Friday with a right oblique strain. Center fielder Cody Bellinger, second baseman Gavin Lux and pitchers Tony Gonsolin and Joe Kelly are also on the IL.