Four members of the Yale men's swimming and diving team were in action in the first day of the U.S. Open Thursday, competing against a strong lineup that included some household names of USA Swimming. The Bulldogs had four swimmers competing in four of the day's six events.<br><br><a href='http://www.yalebulldogs.com/sports/m-swim/recaps/120106aaa.html' target='_blank'>http://www.yalebulldogs.com/sports/m-swim/recaps/120106aaa.html</a><br><br>