Bobcats guard Kemba Walker passes to Hakim Warrick as Bulls guard Nate Robinson defends in the first quarter of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

Bobcats center Bismack Biyombo gets to a rebound before Bulls center Joakim Noah in the first quarter of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

Bulls forward Luol Deng gets loose for a dunk in the first half of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

Bulls forward Carlos Boozer applies defensive pressure against Charlotte center Brendan Haywood in the second half of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

Bulls guard Nate Robinson leads a fast break during the first quarter of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

Bulls head coach Tom Thibodeau works the officials from the sidelines during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

Bulls head coach Tom Thibodeau works the officials from the sidelines during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

The Luvabulls entertain the United Center crowd during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

The Luvabulls entertain the United Center crowd during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

Bulls head coach Tom Thibodeau talks with his team on the court (from left: Marquis Teague, Marco Belinelli, Nazr Mohammed and Luol Deng) during a timeout in the fourth quarter of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

The Luvabulls entertain the United Center crowd during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

The Luvabulls entertain the United Center crowd during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

The Luvabulls entertain the United Center crowd during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

Benny the Bull watches as a member of the Luvabulls flexes her muscles during a timeout in the second half of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

The Luvabulls entertain the United Center crowd during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

Benny the Bull gets a kiss from referee Bill Kennedy during a mistletoe skit in the second half of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

The Luvabulls entertain the United Center crowd during the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012. | Tom Cruze~Sun-Times

Bulls fans and sisters, Lauren (L) and Allison Supron traveled from Grand Rapids, Michigan with friends to watch the Chicago Bulls take on the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

Bulls fans and sisters, Lauren (L) and Allison Supron traveled from Grand Rapids, Michigan with friends to watch the Chicago Bulls take on the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times

Bulls center Joakim Noah tries to get official Karl Lane's attention after a loose ball went to Charlotte in the second half of the Chicago Bulls 91-81 loss to the Charlotte Bobcats Monday December 31, 2012 at the United Center. | Tom Cruze~Sun-Times