NEW HAVEN, Conn. – Junior midfielder Fallon Vaughn (Concord, Mass.) of the No. 10 Yale women’s lacrosse team has been named National Co-Defensive Player of the Week by the IWLCA. The IWLCA announced the award Tuesday afternoon. Vaughn shares the honor with No. 6 Virginia’s Mel Josephson. Vaughn had a game-best five caused turnovers in Saturday’s win vs. then-No. 22 Harvard, which tied for the most CTs in a game by an Ivy League player this season. She also had a team-best (tied) four draw controls and three ground balls in the win. She scored two goals. Vaughn was named…