Andrew Feldman of ESPN reports:

Paul Pierce

With only 20 minutes to go in Level 9, Paul Pierce made his exit from the WSOP main event. The NBA All-Star had been the attention of all at the secondary feature table, even players like Dennis Phillips who asked him for an autograph during play. Pierce played a patient game, but seemed to get active after dinner and would ultimately find himself in a rough spot with 2-2 all-in preflop against the J-J of Allan Vrooman. The board ran clean for Vroonman (K-8-5-4-K) and Pierce stood up from his chair, grabbed his backpack and walked out the door with spectators and players giving him a round of applause as they announced his departure.

Pierce spent a total of 17 hours and 40 minutes in action and outlasted more than half of the field of 2,031 that began on Day 2A.

The action began at 3 p.m. ET with both the Pavilion and Amazon Rooms filled with tournament action, but during Level 9, the final tables from Pavilion were broken and for the rest of the night, the entire field is in one room.