Holmes, 18, a right-handed pitcher drafted out of Conway (S.C.) High School, visited Dodger Stadium on Monday and said he was a physical away from signing. The No. 22 pick overall, Holmes went 4-1 with a 0.35 ERA, striking out 82 batters in 40 innings in his senior season, winning Gatorade's South Carolina Player of the Year.
Holmes signed at Camelback Ranch in Arizona.
Michael Lananna is an associate reporter for MLB.com.