Yankees-Pirates lineups: Corey Kluber on mound, Clint Frazier rests, Aaron Judge starts Updated Mar 13, 2021; Posted Mar 13, 2021 Yankees starting pitcher Corey Kluber throws live batting practice on Sunday, Feb. 21, 2021. (Courtesy of the Yankees) Facebook Share Introducing Yankees Insider: Here’s the latest from MLB on COVID-19 testing results: Major League Baseball and the Major League Baseball Players Association jointly announced Friday the latest COVID-19 testing results conducted under MLB’s COVID-19 Health Monitoring & Testing Plan. The independent Utah laboratory has reported the following results during the past week: Weekly Monitoring Testing: Total Monitoring Testing To Date: 43,928 tests conducted, with 12 total positive tests (9 players, 3 staff members); a 0.03% positive rate. Nine (9) different Clubs had had a Covered Individual test positive during Monitoring Testing.