The Major League Baseball Players Alumni Association hosted another Legends for Youth Baseball Clinic at Northeastern University on Tuesday. Former major leaguers who helped with the day of baseball included Westport native and former Brewer and Marlin Allen Levrault, Brookline native and former White Sox pitcher Richie Moloney, and former Red Sox all-star Jerry Moses. Other clinic helpers included Red Sox third base coach Jerry Royster and Bill Wilk, executive director of Longwood Lifestyle & Events’s charitable arm Longwood Giving, which sponsored the day.