Brook was selected #10 overall by the Brooklyn Nets in 2008, after gaining two years of college basketball experience at Stanford. The following year, he was named the 2009 NBA Rookie of the Year.
Soon, Brook started setting an impressive record. For his third consecutive NBA year, Brook played in all 82 regular games, however, was criticized by the head coach, Avery Johnson, as he struggled to rebound the ball during the games.
During the season, he was traded for an all-star point guard, Deron Williams. The move really helped Brook out, as his scoring average increased and in the 2012-2013 season, the Brooklyn Nets resigned Brook for four more years with a $61 million worth contract extension. Again in 2015, Brook signed a three-year deal with the Nets.