The Big Unit is heading home to the Bay Area.

Randy Johnson

and the San Francisco Giants agreed to a one-year contract yesterday, meaning the 45-year-old pitcher will go for his 300th win with a new team.

Johnson, a 21-year big-league veteran who spent the last two seasons with the Arizona Diamondbacks, was born in Walnut Creek, Calif., about 30 minutes from the Giants' waterfront ballpark.

The five-time Cy Young Award winner has 295 victories after going 11-10 with a 3.91 ERA in 30 starts last season.

Colleges

Cal Poly's

Rich Ellerson

was hired as Army's football coach yesterday, joining a team that hasn't had a winning record since 1996.

He replaces

Stan Brock

, who was fired Dec. 12 after a pair of 3-9 seasons. This season concluded with a 34-0 loss to Navy.

Under Ellerson, Cal Poly made it to the Football Championship Subdivision playoffs four times. He was 56-34 in his eight years at Cal Poly.

Michigan State has agreed to a revised contract with football coach

Mark Dantonio

.

The university announced the deal in Florida, where the Spartans are preparing to play Georgia in the Capital One Bowl on New Year's Day.

Dantonio's contract remains a five-year rollover deal with a base salary of $618,000. His overall compensation will rise to $1.8 million a year, up from $1.13 million.

The Spartans are 9-3 in Dantonio's second season. His overall record with them is 16-9.

Pro basketball

Utah Jazz forward

Paul Millsap

will miss seven to 10 days because of a sprained knee ligament.

He injured his left knee Tuesday night in Milwaukee, but returned to play the second half in a brace. His string of 15 consecutive double-doubles ended Tuesday.

The Christmas Day game between the Los Angeles Lakers and Boston Celtics was the highest-rated regular-season NBA game in four years.

The rematch of last season's NBA Finals earned a 5.3 fast national rating on ABC, the network said. The rating is the percentage of those watching a program in homes with televisions.

The rating for the Lakers' 92-83 victory, which snapped Boston's 19-game winning streak, was 51 percent higher than the 3.5 mark for last year's late Christmas game between the Lakers and the Phoenix Suns.

Horse racing

Jockey

Sam Thompson Jr.

, 36, died on Christmas Day, five days after he was thrown from a quarterhorse following a race at Los Alamitos in California.

Harems Dynasty

, a 2-year-old filly, threw Thompson after finishing seventh in the eighth race. The Los Alamitos Race Course season ended the next day.

Two connected barns at New Orleans Race Course were quarantined because

Diamond Song

, a 3-year-old filly, tested positive for equine herpes.

It may take 10 days to clear other horses trained by

Dallas Stewart

, who trains the filly, and

Neil Howard

, said

Tom David

, the equine medical director of the Louisiana State Racing Commission.

Diamond Song has raced twice, winning her debut Oct. 25 at Keeneland and finishing eighth in an allowance turf race Nov. 13 at Churchill Downs.

Soccer

Defender

Chad Marshall

has re-signed with the MLS champion Columbus Crew, agreeing to a multiyear contract. He was the 2008 MLS Defender of the Year.

Soccer's governing body agreed to increase from 10 to 12 the number of Brazilian cities that will host the 2014 World Cup. Brazil's soccer federation said it persuaded FIFA to make the change because of the country's size.

Noteworthy

American skier

TJ Lanning

crashed at high speed during training for a World Cup downhill race and was ruled out of racing this weekend in Bormio, Italy.

Lanning had cuts on his face and a possible bruise to his knee after losing control and slamming into the safety netting lining the Stelvio course.

Mixed martial arts fighter

Justin Mark Eilers

of Boise, Idaho, was shot to death during a domestic disturbance Christmas night in Boise, police said. He was 30.

James Robert Malec

, 48, was arrested on suspicion of second-degree murder.