Mayer went 0-for-1 with three walks for the FCL Red Sox on Thursday.

EDGE Analysis

Mayer made his professional debut in the Florida Complex League with walks in his first three plate appearances before a groundout in his final appearance. Mayer is Boston's first-round pick (third overall) in the 2021 draft. The left-handed hitting shortstop belted 14 home runs and batted .392 (38-for-97) in 34 games for Eastlake High School in California.

Mayer agreed to a contract Thursday with the Red Sox that contains a $6.66 million signing bonus, Chad Jennings of The Athletic reports.

EDGE Analysis

Mayer, an 18-year-old shortstop from Chula Vista, Calif., was the No. 4 overall pick in this year's first-year player draft. After signing, Mayer took batting practice and participated in fielding drills prior to Thursday's game against the Yankees. The next stop is Fort Myers, where the 18-year-old will prepare for his professional debut in the rookie-level Florida Complex League.