The head of the Nevada boxing commission ordered Manny Pacquiao and Floyd Mayweather Jr. to submit to urine tests as a way of trying to break the impasse that has threatened to derail their proposed March 13 megafight.

Pacquiao and Mayweather must submit to the tests within 48 hours or face possible fines or suspension by the Nevada Athletic commission.

"That at least starts the ball rolling," said Keith Kizer, the commission's executive director.

The ball may not roll very far, though, as time continues to run out on the big fight. There was no communication between the two sides, and Pacquiao promoter Bob Arum said he planned to announce another fight for Pacquiao today.

"There's been absolutely no movement," Arum said.

The tests, which were ordered by commission chairman Pat Lundvall, fall under an out-of-com+petition testing regulation which went into effect last year and allows state boxing authorities to order boxers to comply. Kizer said about 30 of the tests have been ordered in the last 18 months.

Pro football: Holmgren will take time on Mangini decision

New Cleveland Browns president Mike Holmgren has not decided if coach Eric Mangini will be back next season.

Holmgren, who signed a five-year contract to try and fix the Browns, said he will wait until he arrives in Cleveland next week before making any changes. Holmgren plans to meet with Mangini after the Browns (4-11) complete their season. He said it would not be fair to discuss Mangini's status with one game left.

"He's at the end of finishing his first season, the team is doing well and responding to him," said Holmgren, who was in Arizona and spoke to reporters on a conference call.

Holmgren did not provide any clues as to which way he's leaning. He appreciates how tough it can be for a coach to transform a team in one season.

More pro football: Crowder out for year with right foot injury

Miami Dolphins inside linebacker Channing Crowder is ending the season on crutches.

Crowder will miss the rest of the season with a right foot injury, a person familiar with the case said. The person said Crowder underwent an MRI exam, but a decision had not yet been made regarding whether he needs surgery.

Pro baseball: Giants close to adding DeRosa, Uribe

A person with knowledge of the negotiations tells The Associated Press that the San Francisco Giants have reached a preliminary agreement with veteran infielder Mark DeRosa on a two-year contract.

The person spoke on condition of anonymity because the agreement has not been finalized.

The addition of DeRosa would be a significant upgrade for the Giants' lineup. He was scheduled for a physical and a formal announcement could come as soon as today.

More pro baseball: Diamondbacks sign RHP Howry to one-year deal

The Arizona Diamondbacks have signed reliever Bob Howry to a one-year contract with a club option for 2011.

Terms weren't disclosed.

The 36-year-old right-hander was 2-6 with a 3.39 ERA in 63 appearances with the San Francisco Giants last season. Right-handed batters hit just .207 against him.

Pro basketball: Knicks' Robinson fined $25,000 for agent's remarks

Benched New York Knicks guard Nate Robinson was fined $25,000 by the NBA after his agent made a trade request.

Robinson has not played in the Knicks' last 12 games. A two-time winner of the All-Star slam dunk contest, he has played in only 12 games this season and is averaging 11 points.

Agent Aaron Goodwin recently told reporters he'd asked the Knicks to move Robinson to another team. NBA players are not allowed to publicly make trade demands, and Robinson was fined for statements detrimental to the league.

Goodwin said the benching was personal, not basketball related. A day after Goodwin's comments on Dec. 19, Knicks president Donnie Walsh said he would probably begin talks with the agent about a deal.

College football: Gators embrace Addazio as interim coach

As Steve Addazio listened to Florida coach Urban Meyer talk about his health and his future, it never crossed his mind what kind of reaction players would have when he was picked to be the Gators' interim coach. Addazio was unprepared for their response. They gave the longtime assistant an overwhelming reception, an ovation so long and loud that it even caught superstar quarterback Tim Tebow off guard.

"It was one of the loudest rounds of ovation and applause that I have been a part of in my entire life," Tebow said. "The team, the players clapped probably for three or four minutes and didn't stop. You could see coach Addazio getting emotional while we were doing that because it meant so much to him. I think that was one of the coolest parts of the last two days."

Addazio's coaching resume includes stops at Syracuse (1995-98), Notre Dame (1999-01) and Indiana (2002-04). He also spent three years at Western Connecticut State (1985-87) and seven seasons at a Connecticut high school.

Pro hockey: Ducks place Calder on waivers, recall Bodie

The Anaheim Ducks have placed veteran left wing Kyle Calder on waivers.

If Calder isn't claimed by this morning, the Ducks will be able to send Calder to the minors.

Anaheim also recalled right wing Troy Bodie from the Toronto Marlies of the AHL. Bodie played in four games for the Ducks last season, going scoreless.

Horse racing: NY comptroller subpoenas NYRA financial records

The New York state comptroller subpoenaed financial records from the New York Racing Association and is challenging the group's claim that it may need another bailout to save the Belmont Stakes.

The association, which has held the franchise to run the state's three thoroughbred tracks for decades, got $105 million from the state and forgiveness of millions more in state debt in 2008. It is refusing to open its books to Thomas DiNapoli's auditors, saying a recent court ruling limits the comptroller's authority to examine its finances.

NYRA President Charles Hayward said last week that unless New York lawmakers agree to get video lottery terminals up and running soon at the Aqueduct track in Queens, NYRA may need another $30 million from the state to save the racing season at Long Island's Belmont Park, which includes the storied final leg of the Triple Crown.

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