Nippon Professional Baseball said Monday it plans to test all of its players and coaches for the new coronavirus once a month after the season opens on June 19.At an online meeting with representatives of the 12 teams, NPB also decided to conduct polymerase chain reaction tests before the season for players, coaches and umpires.The decision was made following a recommendation by a panel of infectious disease experts that has been meeting with executives of NPB and the J-League, the country's pro soccer body. The panel said NPB should test players using their saliva every month.The J-League,…READ FULL ARTICLE