the 2006 Draft. A forward in college, he was converted to a left back by Chivas coach Bob Bradley, and was his team's surprising starter at the position when the season opened. Injuries and suspensions forced Bornstein back into an attacking role for Chivas USA's June 3 match against FC Dallas, where the rookie scored his first MLS goal. He continued his fine play in the back and also contributed to the attack during the rest of the season, finishing the year with four assists and six goals, leading all rookies. He started every game in the season, and his total of 2,878 minutes played was third-highest in the league. He was rewarded for his fine form by winning the 2006 MLS Rookie of the Year Award. In 2007, he was an MLS All-Star, and named to the MLS Best XI as one of the best 11 players in Major League Soccer. In 2008, Bornstein suffered a knee injury that affected him throughout the spring. When he came back, Chivas coach Preki began to employ him in an attacking capacity, which Bornstein trained for in his youth. He repeated as an MLS All-Star in 2008. In summer 2008, Israeli club Maccabi Tel Aviv was reportedly interested in Bornstein. News stories claimed that the offer involved a transfer fee of $750,000 and would increase the player's salary five-fold to around $500,000 a season. Bornstein was apparently unenthusiastic, fearing that such a move could cost him his place in the U.S. national team. In 2009, he was the Chivas USA Defender of the Year (2009) and captain. In five seasons with Chivas USA (2006–10), Bornstein made 123 regular season appearances (117 starts). Liga MX Bornstein spent the next eight seasons in Mexico's first division, Liga MX. He first played for Tigres de la UANL (2010–14). In July 2010, it was announced by Chivas USA that Bornstein would join Tigres de la UANL in January 2011, following the conclusion of the 2010 Major League Soccer season. Bornstein was selected by Portland Timbers in the 2010 MLS Expansion Draft. In doing so, Portland retained his MLS rights should he ever return to the league. On February 13, 2013, Portland traded Bornstein's MLS rights back to Chivas USA with allocation money for midfielder Ben Zemanski. Bornstein was transfer listed by Tigres on November 19, 2012. He played for Atlante F.C. (2013–14) and Querétaro F.C. (2014-18).