But Haren, who says he gets the same feeling every spring, was still able to weather it and toss five innings, allowing two runs on four hits in the Angels' 2-1 loss.
"It just feels like you don't get as much whip on the ball as you usually do," Haren said. "There's a certain sound you hear when you throw a ball real well, and you don't hear that sound. It's weird. Nothing hurts, but it's almost like you can't get loose. Your arm is just moving slower."
Haren was actually slated to throw four innings on a 60-pitch limit, but he needed just 48 pitches to get through five frames. He was so efficient that he had to get extra work in after his outing.
"They were very aggressive and swinging a lot, so I went out there going more for a pitch count rather than innings," Haren said. "I wanted to get to 60, so I threw 10 in the bullpen. I'm right where I want to be."