Toronto Blue Jays starter Yusei Kikuchi gave up the lead and was tagged with the loss Saturday as the Colorado Rockies came back for an 8-7 victory.
Kikuchi (9-5) allowed six runs, two earned, on six hits and four walks over 4⅔ innings while striking out four at Denver's Coors Field.
The Japanese left-hander took a 5-0 lead into the bottom of the second inning before giving up two runs on Charlie Blackmon's bases-loaded single.
He surrendered two more in the fourth, as Colorado cut the lead to 5-4, and was pulled with two outs in the fifth after putting the go-ahead run on base with two straight walks.
"I got behind in the count because I made it too easy to tell which fastballs were balls or strikes, and they went after my breaking ball," Kikuchi said. "I know what needs to be fixed, so I want to make the proper adjustments."
In other MLB action, Shohei Ohtani went 0-for-2 while drawing three walks for the Los Angeles Angels in their 2-1 loss at the Oakland Athletics.
The game was MLB home run leader Ohtani's ninth straight without going deep, marking his longest barren stretch of the season.
His 21 walks are the most in the majors this year and also Ohtani's most in an MLB season, eclipsing his 20 from 2021. The walks were met by loud boos from the crowd, hoping to see Ohtani swing despite the Angels being the visiting team.