Lakers reserve guard Chris Duhon missed the second half of Sunday’s practice because of back spasms.

“It was a freak thing,” Duhon said in an interview with this newspaper. “I jumped up to pass and my glute kind of locked up.”

The Lakers are listing Duhon as day-to-day. He walked off the practice court wearing an ice pack on his back before entering the weight room to work on core exercises. Duhon has averaged 4.1 points per game on 42.7 percent shooting and 3.7 assists in 28 games, including nine as a starter.

Kobe Bryant and Jordan Hill have also nursed back spasms during the season.

Will Duhon practice tomorrow?

“Yeah,” he said. “I just have to ease up a little bit.”

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