Sports briefs

OLYMPICS

Russia head resigns

The head of the Russian Olympic Committee resigned Wednesday in the wake of the nation's worst performance at the Winter Games, news agencies said, citing the committee's spokesman. Leonid Tyagachev took over as head of the Russian Olympic Committee in 2001. In the wake of the Vancouver Games, President Dmitry Medvedev has warned that sports officials would be fired if they failed to resign.

NFL

Peyton has surgery

Four-time league MVP Peyton Manning has undergone neck surgery to relieve pain caused by a pinched nerve. The team reported that the injury has caused intermittent pain in Manning's neck for the past four years but never affected his training, practice or playing regimen.

GOLF

Caddie upset with Tiger

Tiger Woods' caddie said he knew nothing about the golfer's extramarital affairs and was angry with him over the scandal. Steve Williams told TV3's "60 Minutes" program in Wellington, New Zealand, that he is bitter at the reaction toward him. Williams said he would have "blown the whistle" if he had known about the behavior.MLB

Upton, D-Backs agree

Outfielder Justin Upton and the Arizona Diamondbacks have agreed to a six-year, $51.25 million contract. The 22-year-old outfielder hit .300 with 26 homers and 86 RBIs.

NBA

LeBron, Cavs top Nets

LeBron James scored 26 points and Cleveland routed the host Nets, 111-92. Terrence Williams and Brook Lopez had 21 points apiece for the Nets (6-54). - AP