Lakers center Andrew Bynum believes that his slump this postseason is entirely mental.

"It's mental," said Bynum. "It's not really physical."

Many believe that Bynum's issues are physical, and strangely enough he admitted earlier this week that his knee was only "85 to 90 percent" in the wake of his January injury.

"It's mind-set," Bynum said. "I don't know if it's just because of the injury or what."

Bynum is averaging just 5.0 points and 2.7 rebounds per game in 14.4 minutes during the playoffs.