Red Sox prospect Marcelo Mayer nearly hits for cycle in spring training

Marcelo Mayer went 3-for-3 at the plate on Thursday for the Red Sox. (Danielle Parhizkaran/Globe Staff)Red Sox prospect Marcelo Mayer was locked in at the plate on Thursday afternoon.

The 22-year-old infielder and blue-chip talent teed off against Tigers pitching during Grapefruit League play — going 3-for-3 at the plate in Boston’s 6-5 win over Detroit.

Mayer — who hit third in Boston’s lineup behind fellow top prospects Roman Anthony and Kristian Campbell — came just a double short of a cycle on Thursday, slugging a home run and driving in three runs in the win.

Mayer opened the scoring for Boston in the first inning against Detroit starter Jack Flaherty, closing out an eight-pitch at-bat by…