The Yankton Bucks were dealt their first loss of the season as they fell short to Brandon Valley 5-4, and defeated Sioux Falls Roosevelt 8-1 in boys tennis action yesterday afternoon in a triangular in Brandon Valley. The Bucks are now 5-1 on the young season and now focus on their April 13th match at McKennan Park in Sioux Falls vs O’Gorman, first serve is 4pm.