William And Kate Hit Nets Game

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge pose with LeBron James as they attend the Cleveland Cavaliers vs. Brooklyn Nets game at Barclays Center on December 8, 2014 in the Brooklyn borough of New York City. (Photo by Neilson Barnard- POOL/Getty Images)

Duchess and Duke of Cambridge Attend Nets Game

NBA Global Ambassador Dikembe Mutombo, The Duchess and Duke of Cambridge and PRESIDENT, ONEXIM SPORTS AND ENTERTAINMENT HOLDING USA, INC. Irina Pavlova, takes in the game between the Cleveland Cavaliers against the Brooklyn Nets at the Barclays Center on December 8, 2014 in Brooklyn. (Photo by David Dow/NBAE via Getty Images)

The Duke And Duchess Of Cambridge Attend Cleveland Cavaliers v Brooklyn Nets

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge pose with LeBron James (R) backstage as they attend the Cleveland Cavaliers vs. Brooklyn Nets game at Barclays Center on December 8, 2014 in the Brooklyn borough of New York City. (Photo by Neilson Barnard/Getty Images)

The Duke And Duchess Of Cambridge Attend Cleveland Cavaliers v Brooklyn Nets

Prince William, Duke of Cambridge (C) and Catherine, Duchess of Cambridge (2nd L) pose with NBA Commissioner Adam Silver (2nd R), Global Ambassador Dikembe Mutombo (L) and Sr. Vice President, Community & Player Programs Kathleen Behrens (R) as they attend the Cleveland Cavaliers vs. Brooklyn Nets game at Barclays Center on December 8, 2014 in the Brooklyn borough of New York City. (Photo by Neilson Barnard/Getty Images)

Duchess and Duke of Cambridge Attend Nets Game

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge watch the game between the Cleveland Cavaliers and the Brooklyn Nets at Barclays Center on December 8, 2014 in Brooklyn. (Photo by Al Bello/Getty Images)

Duchess and Duke of Cambridge Attend Nets Game

A detailed view of Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge on the Jumbotron duirng the game between the Cleveland Cavaliers and the Brooklyn Nets at Barclays Center on December 8, 2014 in Brooklyn. (Photo by Al Bello/Getty Images)

Cleveland Cavaliers v Brooklyn Nets

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge watch the game between the Cleveland Cavaliers and the Brooklyn Nets at Barclays Center on December 8, 2014. (Photo by Al Bello/Getty Images)

Cleveland Cavaliers v Brooklyn Nets

NBA Global Ambassador Dikembe Mutombo, The Duchess and Duke of Cambridge and PRESIDENT, ONEXIM SPORTS AND ENTERTAINMENT HOLDING USA, INC. Irina Pavlova, takes in the game between the Cleveland Cavaliers against the Brooklyn Nets at the Barclays Center on December 8, 2014. (Photo by David Dow/NBAE via Getty Images)

William And Kate Hit Nets-Cavs Game

Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, watch as LeBron James of the Cleveland Cavaliers looks on during his game against the Brooklyn Nets at Barclays Center on Dec. 8, 2014, in Brooklyn. (credit: Al Bello/Getty Images)

William And Kate Hit Nets-Cavs Game

Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge are greeted by NBA Commissioner Adam Silver at Barclays Center in Brooklyn on Dec. 8, 2014. (credit: Tim Rooke-Pool/Getty Images)

William And Kate Hit Nets-Cavs Game

LeBron James of the Cleveland Cavaliers greets the Duchess and Duke of Cambridge after the game against the Brooklyn Nets at the Barclays Center on Dec. 8, 2014, in Brooklyn. Copyright 2014 NBAE (credit: David Dow/NBAE via Getty Images)

William And Kate Hit Nets-Cavs Game

NBA ambassador Dikembe Mutombo, the Duchess and Duke of Cambridge and the President of Onexim Sports and Entertainment Holding USA, Irina Pavlova, attend the game between the Cleveland Cavaliers and Brooklyn Nets on Dec. 8, 2014 at the Barclays Center in Brooklyn. Copyright 2014 NBAE (credit: Jesse D. Garrabrant/NBAE via Getty Images)