The North Carolina women's lacrosse team had a lot to play for Sunday at Henry Stadium. Not only was it Senior Day, but the No. 7 Tar Heels were looking to send a message to the NCAA selection committee, especially after a 7-6 loss to sixth-ranked Dartmouth on Friday. Next Sunday, the committee will announce the 16 teams that will go on to postseason play.UNC delivered under pressure with a 20-5 pummeling of Massachusetts."We took out our frustration today, and I think that was big deal for us," UNC goalie Melissa Coyne said.