New Ulm Park and Recreation employee Josh Kretsch blows leaves behind the Johnson Park baseball field grandstand Thursday. Minnesota Valley Lutheran opens its high school baseball season against Mankato Loyola at 5 p.m. Thursday, April 8, at Mueller Park. New Ulm High School hosts Worthington at 5:30 p.m. April 8, at NUHS. Cathedral High school hosts Wabasso at 4:30 p.m. Tuesday, April 12.