,
Trevor Tierney and
Keith Elias in 2002 He anchored the defense of the teams that were led on offense by the record-setting trio of revered attackmen
Jesse Hubbard,
Jon Hess and
Chris Massey. He was awarded the 1998
Schmeisser Award as the best NCAA
lacrosse defenseman. He was a first team
USILA All-American Team selection in 1998 and third team selection in 1997. He was also first team All-Ivy League in 1997 and 1998. The 1995 team, which earned the school's sixth consecutive
NCAA Men's Lacrosse Championship invitation, was Ivy League co-champion, while the 1996–1998 teams were 6–0 undefeated outright conference champions. These undefeated league champions won the
1996,
1997 and
1998 NCAA Division I Men's Lacrosse Championships, becoming the first team to threepeat since
Syracuse from 1988–90 and the first to be recognized to have done so without an NCAA scandal since
Johns Hopkins from 1978–80. He was a co-captain during his 1998 senior season. Cook was named to Princeton's All-Decade team. In the
1998 NCAA Division I Men's Lacrosse Championship tournament semifinals he held the nation's leading scorer
Casey Powell of
Syracuse without a goal in the 11–10 victory, but he was injured and had to sit out the finals on
crutches. He was named to the All-tournament team nonetheless. == Professional career ==