Mayer picked up five plate appearances for the Red Sox this spring, going 0-for-4 with a walk and two strikeouts.

EDGE Analysis

He's 19 and has never played above rookie ball, so no one expected Mayer to put up numbers in spring training. Last year's No. 4 overall draft pick, he's expected to open 2022 in Low-A, and it'll be worth watching to see whether he can maintain last season's impressive walk rate (14 percent) while getting to his power more often in game action.