Former heavyweight champion

Tommy Morrison

was pulled from a scheduled bout last night because state boxing officials didn't get the results of lab tests in time.

Dick Cole, boxing administrator for the state's Department of Licensing and Regulation, said a Houston doctor, Jorge Guerrero, examined Morrison on Thursday and cleared him to fight. But Guerrero never filed the paperwork required by the agency, Cole said.

Morrison, 38, is attempting to come back after an 11-year retirement following the discovery that he was HIV positive. Morrison claims he has taken several HIV tests during his comeback bid and all have been negative.

Morrison was slated to fight Dale Ortiz in a four-round bout in a Houston hotel ballroom last night. Morrison was not immediately available for comment. The hotel did not have a guest registered under Morrison's name.

Morrison returned to the ring earlier this year in West Virginia, knocking out John Castle in the second round. West Virginia Athletic commissioner Steve Allred approved Morrison's participation in that fight after reviewing medical records and consulting with the Association of Boxing Commissions.

In other boxing news:

* Arturo Gatti will fight Alfonso Gomez, of "The Contender," on July 14 in Atlantic City. Also, IBF welterweight champion Kermit Cintron will fight mandatory challenger Walter Matthysse.

Auto Racing

* David Hyder, one of two Michael Waltrip Racing employees suspended by NASCAR in a cheating scandal at Daytona in February, parted ways with the team. He and team director Bobby Kennedy were put on indefinite suspension and Hyder was fined $100,000 by NASCAR after an illegal substance was found in Waltrip's No. 55 Toyota before the season-opening Daytona 500. Kennedy remains on the team payroll, but suspended.

* Two-time Nextel Cup champion Tony Stewart recanted his rant against NASCAR and acknowledged he damaged the sport's credibility by likening it to professional wrestling on his Sirius Satellite Radio show. He said NASCAR orchestrated races with bogus cautions. In a separate matter, he was fined $10,000 for skipping a postrace news conference in Phoenix last week and is on probation for the rest of the year.

* The IndyCar Series will make motorsports history tomorrow at Kansas Speedway, with three women behind the wheel: veterans Danica Patrick and Sarah Fisher and rookie Milka Duno, of Venezuela, the series' first Hispanic female driver.

Colleges

* Idaho sophomore defensive tackle Marvin C. Jones Jr., 20, was arrested after he allegedly sold cocaine to undercover police officers, Moscow, Idaho, police said.

* Clemson revealed seven NCAA secondary violations, including an instance where an athlete's brother got free transportation, lodging and meals from an athletic booster while attending a sibling's road games last September. Names were not released.

Sport Stops

* Rafael Nadal extended his unbeaten run on clay to 70 matches and advanced to the semifinals of the Open Seat Godo in Barcelona, Spain, by beating Potito Starace.

* Mike Hohensee, coach of the Arena Football League's Chicago Rush, was hospitalized after being struck by a car while walking through a grocery store parking lot.

* St. Louis Blues forward Lee Stempniak had a goal and an assist to lead the United States past Austria, 6-2, in the preliminary round Group B match at the world hockey championships in Mytischi, Russia. The Czech Republic, Finland and Russia also won. *