LAS VEGAS (AP) - Police detained NBA star Paul Pierce in handcuffs during a weekend traffic stop on the Las Vegas Strip, but released him without issuing a summons.

Las Vegas police Officer Bill Cassell said Monday that the Boston Celtics player was handcuffed briefly after emerging "a little agitated" from a vehicle he was driving when police stopped him about 3 a.m. Sunday on Las Vegas Boulevard.

Pierce was given field sobriety tests and a Breathalyzer, which registered below the 0.08 percent blood-alcohol level for driving in Nevada.

Cassell didn't provide the test result, but says Pierce wasn't arrested and wasn't issued a summons.

A valet was called to drive Pierce's car, and Pierce took a cab back to where he was staying.

The Celtics and Pierce's agent had no immediate comment Monday.