The NFL suspended defensive end Greg Hardy for 10 games without pay Wednesday for conduct detrimental to the league after concluding there was "credible evidence" he roughed up his former girlfriend nearly a year ago when he was a member of the Carolina Panthers.

Hardy, who joined the Dallas Cowboys as a free agent on a one-year, incentive-laden deal, was notified of the decision in a letter from Commissioner Roger Goodell. Hardy plans to appeal.

Hardy's assault case had been dismissed in a North Carolina court because his accuser refused to cooperate with prosecutors, but an NFL investigation concluded that Hardy used physical force against Nicole Holder in at least four instances.

Hardy, 26, was on the commissioner's exempt list last season and did not play for Carolina, although he was paid his $13.1 million salary. He was suspended under a policy that was revised after the league was widely criticized for its handling of a domestic violence case involving former Baltimore running back Ray Rice.

The NFL also concluded that Hardy failed to provide complete and accurate information to investigators and members of the league staff.

Dolphins sign receiver Jennings

•The Miami Dolphins acquired a veteran wide receiver, signing free agent Greg Jennings, who was released by the Vikings last month. Jennings led the Vikings last season with 59 receptions for 742 yards and six touchdowns. Miami also signed veteran offensive linemen Jeff Linkenbach and Jacques McClendon to one-year contracts

College basketball

Buckeyes' Russell to go pro

D'Angelo Russell is moving on from Ohio State after one season.

The point guard and first-team All-America is making himself available for the NBA draft, he told ESPN.com. He is expected to be a top-five pick.

Russell was the Big Ten freshman of the year. He led the Buckeyes in scoring at 19.3 points per game, and also averaged 5.0 assists and 5.7 rebounds per game.

•UNLV sophomore forward Christian Wood is leaving the Rebels early to enter the NBA draft. He averaged 15.7 points per game last season.

Hoibert about to be released from hospital

Iowa State men's basketball coach Fred Hoiberg is expected to be released from the Mayo Clinic on Thursday, less than a week after open-heart surgery. He is expected to return to work in about six weeks.

Boxing

Mayweather takes on Ali again

Floyd Mayweather Jr. refused Wednesday to back off earlier comments declaring himself a better fighter than Muhammad Ali.

"He called himself The Greatest and I call myself TBE [The Best Ever]," Mayweather said. "I'm pretty sure I'll get criticized for what I said, but I could care less about the backlash."

Mayweather pointed to his 47-0 record as proof. He also said he would never have lost to a fighter like Leon Spinks, who beat an aging Ali in 1978 after having just seven pro fights.

"There were some other fights he lost and he's still known as The Greatest because that's what he put out there," Mayweather said.

AROUND THE HORN

Men's tennis: Rafael Nadal avenged last year's loss to Nicolas Almagro by beating his fellow Spaniard 6-3, 6-1 at the Barcelona Open, but U.S. Open champion Marin Cilic made a second-round exit, losing to Victor Estrella 6-4, 6-4.

Women's tennis: Zarina Diyas routed Germany Fed Cup player and former Wimbledon runner-up Sabine Lisicki 6-0, 6-0 in the first round of the Porsche Grand Prix in Stuttgart.

Mixed martial arts: UFC fighter Anderson Silva will fight for a spot on the Brazilian taekwondo team at the 2016 Olympics in Rio de Janeiro. He was cleared to compete for a spot after meeting with Brazilian taekwondo officials Wednesday.

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