LOS ANGELES - Another Mavericks-Lakers game in Los Angeles presented yet another opportunity for the visitors to leave town with that same old empty feeling.

Robert Horry drilled a game-winning 3-pointer with 45.8 seconds left as the two-time defending NBA champion Lakers eked out a 105-103 triumph over the Mavericks on Sunday night. The Lakers (47-18) tied Sacramento for the best record in the NBA and moved 1 1/2 games ahead of the Mavericks.

The Lakers and Mavs square off again Tuesday in Dallas, and the Mavericks are saying they won't settle for anything less than a win.