Gray said his struggles this season were due to health issues, Kyle Newman of The Denver Post reports. "I wasn't really healthy," the right-hander said. "My (velocity) was down this year. I was down about 20 pounds."
The 2018 campaign was a rollercoaster of a year for Gray. The right-hander began the season as the Rockies' Opening Day starter but was sent to the minors before the All-Star break due to his struggles (5.44 ERA across 18 first-half starts). Gray flashed his potential upon his return to the majors -- he posted a 2.59 ERA across his first seven starts back with the big club -- though he struggled down the stretch and was ultimately left off the team's playoff roster. While the 26-year-old believes his struggles were health-related, he was unsure when asked if he was battling an illness. "Maybe, I'm not sure," Gray stated. "My body kind of did a 180 (degree turn) this year and I'm not sure why. I want to get it back under control and get back to being strong." Gray plans on bulking up this offseason in an effort to turn things around next year, though only time will tell if his added muscle helps.