Trevor R. Tierney is a current National Collegiate Athletic Association (NCAA) men's lacrosse assistant coach, former Major League Lacrosse (MLL) defensive coordinator and retired lacrosse goaltender who has played professional box lacrosse in the National Lacrosse League (NLL) and professional field lacrosse in MLL. Trevor starred as a member of the Princeton Tigers men's lacrosse team from 1998 through 2001, where he was an NCAA goaltender of the year, two-time United States Intercollegiate Lacrosse Association (USILA) All-American (first team once), a national goals against average (GAA) and save percentage statistical champion and a member of two national champion teams. During his time at Princeton, the team qualified for the NCAA Men's Lacrosse Championship all four years, reached the championship game three times, won the championship game twice and won four Ivy League championships. Trevor was a co-captain of the second national champion team he participated on. For five years, Tierney held the NCAA goaltending all-time records and continues to hold the Princeton University career GAA record. He is the son of Hall of Fame coach Bill Tierney. He was a two-time Team USA goaltender for the World Lacrosse Championships and a former All-World goaltender. He is a three-time MLL All-Star and won a MLL championship. Since retiring he has become a defensive coordinator for MLL's Denver Outlaws and a defensive assistant for his fathers Denver Pioneers team. Background Tierney attended the Hun School of Princeton, where he played goaltender. College career At Princeton Trevor Tierney was awarded the 2001 Ensign C. Markland Kelly, Jr. Award as the best National Collegiate Athletic Association (NCAA) lacrosse goaltender. He was a first team USILA All-American Team selection in 2001 and honorable mention selection in 2000. Trevor was also a 2000 honorable mention All-Ivy League selection, 2001 first team All-Ivy selection, 2000 Academic All-Ivy selection, and a 2001 USILA Scholar All-American. He served as co-captain of the 2001 team. Tierney was the 2001 national statistical champion for goals against average (GAA) (5.70) and save percentage (.671). He held NCAA the career (6.65) and single (5.70) season GAA record from 2001 until they were both surpassesd in 2006 by Navy's Matt Russell. His career GAA continues to be a Princeton record. During his four-year career, Princeton went undefeated in Ivy League Conference play with consecutive 6–0 records. Princeton was invited to the 1999 tournament, was a finalist in the 2000 tournament and earned championships in