Jake Arrieta has endured an up-and-down season and a loss to the Brewers continued the trend.
Arrieta gave up four hits over six innings, but walked four and surrendered a home run to Ryan Braun.
"I'm not concerned with it," he said. "Just need to find that comfort with the sinker in the strike zone, first pitch. After that, it opens up a lot of doors. We're working on it."
While Arrieta seems focused on his off-speed stuff, Joe Maddon often references his velocity.
"There were a lot of 93s (mph)," Maddon said. "I think he hit 95 once or twice. But he's not complaining of being tired or anything bothering him physically."