Gilroy's Robert "The Ghost" Guerrero returned from a 13-month ring absence with a bloody, bruising unanimous 12-round decision over Yoshihiro Kamegai on Saturday night at the StubHub Center in Carson.

Guerrero (32-2-1, 18 knockouts), a former four-division world champion, was severely tested by Kamegai (24-2-1) in a draining slugfest. He fought the second half of the fight with a grotesque cut and swelling on his left eye, but he landed some of his biggest shots in the 12th round.

"He hit me with a good shot and (my eye) started swelling up quick," Guerrero said. "It was closed up and I was having trouble, but it's no excuse."

Both fighters traded big punches throughout the bout, yet neither recorded a knockdown.

"I'm not running," Guerrero said. "That's the type of guy I am. I'll stay there and fight no matter how tough he is. ... I like to give the fans what they want."

The judges scored it 117-111, 117-111 and 116-112 for Guerrero, who hadn't fought since losing a lopsided decision to unbeaten welterweight champion Floyd Mayweather Jr. in May 2013 in Las Vegas.

"I came here to fight a great fighter like Robert Guerrero, and I came here to win," Kamegai said. "I'm OK with the decision. He shook me a couple of times, and I felt weakened in the legs, but I had him hurt a few times, too."

Guerrero took time off after the Mayweather loss. When he returned to the ring he got the chance to show off his toughness against Kamegai -- even if he regretted it afterward.


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"I feel into that banging again, and that's something I've got to work on," Guerrero said, his damaged eye concealed behind sunglasses. "I wanted to box on the outside, but I have a habit of banging away and exchanging."

The bout was staged by Oscar De La Hoya's Golden Boy Promotions.

On the undercard Vasyl Lomachenko outpointed previously unbeaten Gary Russell Jr. for the vacant WBO featherweight title. Lomachenko, an Olympic gold medalist from the Ukraine, is 2-1 as a pro. He lost his first title shot in March to Orlando Salido.

Rugby

The U.S. national team ended a winless streak against Canada with a 38-35 victory before a sold-out crowd of 8,000 at Bonney Field in Sacramento.

Chris Wyles kicked a penalty in the 67th minute to cut the Americans' deficit to four points. On the restart, Tom Coolican blocked a clearance kick deep in Canada's half, leading to Brett Thompson's try in his Eagles' debut. Wyles' conversion put the U.S. ahead 38-35 with 10 minutes left.

Former Cal player Blaine Scully had two tries for the Eagles, who hadn't beaten their North American rivals since 2009. Canada led by 10 points at halftime.

Neither Canada nor the U.S. were in contention to win the Pacific Nations Cup, but the Eagles, captained by San Jose's Todd Clever, took over second place with the win. The tournament also features Samoa, Tonga and Fiji and Japan.

Horse racing

Longview Drive won the $100,000 Oak Tree Handicap, the first stakes race at the 2014 Alameda County Fair meet. The winner, ridden by William Antongeorgi III and trained by Jerry Holldendorfer, swung five-wide down the stretch to beat Footbridge and jockey Frank Alvarado by a length. Longview Drive ran 1 1/8 miles in 1:50.33.

Tennis

Cal alum Raquel Kops-Jones and Abigail Spears beat Ashleigh Barty and Casey Dellacqua 7-6 (1), 6-1 in the doubles final of the grass-court Aegon Classic in Birmingham, England.

Golf

Incoming Cal freshman KK Limbhasut closed with a 3-under 69 to finish at 10-under 278 and win the Western Junior Championship by eight shots in Flossmoor, Illinois.

Track and field

Three-time Paralympic champion and F44 world record-holder Jeremy Campbell successfully defended his men's discus title at the U.S. Paralympics Championships at the College of San Mateo. Campbell took the lead with a 182-feet, 8-inch effort on his fourth throw.

The Associated Press contributed to this report.