The Baltimore Orioles have promoted top prospect Coby Mayo to the major leagues to fill in for injured third baseman Jordan Westburg, who was placed on the 10-day injured list with a broken right hand. Mayo, a 22-year-old fourth-round pick from the 2020 draft, has been outstanding in Triple-A Norfolk, boasting a .301/.375/.586 slash line with 20 home runs and 61 RBIs in 77 games. Despite defensive concerns at third base, Mayo is expected to be the Orioles' primary third baseman. He made his debut against the Cleveland Guardians, going 0 for 2 with two walks. The Orioles are currently tied with the New York Yankees for first place in the American League East. Infielder Livan Soto was optioned to Triple-A to make room for Mayo on the roster.