After winning 17 of 18 games since the All-Star break, the Los Angeles Lakers have lost four straight games for the second time this season.

They are in jeopardy of losing the No. 2 seed in the West to the Dallas Mavericks, and of potentially losing home-court advantage in the NBA Finals to the Miami Heat or Boston Celtics, who have the same record as the Lakers.

"Oh yeah, we're very concerned. We really are," Lakers coach Phil Jackson said. "I'm concerned very much so.

"You can't turn the switch on and off like that in basketball without having to pay some kind of price. Your game just doesn't come back all of the sudden," Jackson added