UNDATED — This book just might be a quick read.

Usain Bolt's representatives are in talks with publishers about a biography, the agent for the record-breaking sprinter said.

Bolt emerged as a superstar at last year's Beijing Olympics, winning gold medals in world-record time in the 100 meters, 200 meters and 400-meter relay. He took home golds in all three events again at this month's world championships — smashing his own records in the 100 and 200.

TAMPA, Fla. — Disgraced former NBA referee Tim Donaghy was back behind bars, accused of violating his federal probation by not showing up for work, the U.S. Marshals Service said.Donaghy, 42, was being held without bond a day after his arrest at a halfway house in Tampa where he was finishing his 15-month sentence on gambling charges.

UNDATED — Defending champion Serena Williams was seeded No. 2 for the U.S. Open, behind Dinara Safina, because the tournament stuck to its policy of strictly following the rankings.Roger Federer was seeded No. 1 for the fifth time at the year's last Grand Slam tournament. He is ranked No. 1 and has won the U.S. Open five years in a row.

PITTSBURGH — Mitch Grossman, 12, a black belt from Slippery Rock, placed fifth in forms and fifth in sparring at the 10th annual Pittsburgh Kumite Classic recently.The national martial arts competition was held Aug. 22-23 at the Pittsburgh Hilton and drew competitors from the United States, Canada, South America and Europe.