Leading Off

Burda in contention

Modesto's Jeff Burda is tied for third at the Senior NorCal Open Championship. Burda shot a 2-under 70 Monday at Diablo Grande in Patterson. Stockon's Tony McBroom shot a 68 for a two-stroke advantage.

A's lock up Geren, Ellis for near future

Manager Bob Geren and second baseman Mark Ellis are staying with the Oakland Athletics for at least the near future. The A's picked up contract options for Geren and Ellis on Monday, locking up Geren through 2009 and Ellis next season. Geren, who had extensive managerial experience in the minors and overseas and is a longtime friend of general manager Billy Beane, signed a two-year contract for his first managerial job last November. Ellis has been one of Oakland's most reliable players in a disappointing, injury-filled season.

SF's Davis probably sidelined two weeks

Just when Vernon Davis finally became a key part of the San Francisco 49ers' offense, the tight end is headed back to the sideline. Davis probably will miss the 49ers' next two games with a sprained ligament in his right knee after getting hurt during San Francisco's 37-16 loss at Pittsburgh. Last year's No. 6 overall draft pick caught four passes for 56 yards against the Steelers just a few days after asking coach Mike Nolan how he could be more involved in the Niners' struggling offense. The athletic tight end appeared headed for a breakout season after missing six games of his rookie campaign with a broken right leg.

Tyson pleads guilty

Former heavyweight champion Mike Tyson pleaded guilty Monday to charges of drug possession and driving under the influence, stemming from a traffic stop last year as he was leaving a nightclub. Tyson quietly acknowledged to a judge that he had cocaine and was impaired when he was stopped for driving erratically in Scottsdale, Ariz., on Dec. 29. He faces a maximum of four years and three months in prison when he is sentenced Nov. 19. Police stopped Tyson after the boxer had spent the evening at Scottsdale's Pussycat Lounge. An officer said he saw Tyson wiping a white substance off the dashboard of his black BMW, and that his speech was slurred. Authorities said they found bags of cocaine in Tyson's pocket and in his car. Tyson told officers later that he used cocaine "whenever I can get my hands on it," and that he preferred to smoke it in Marlboro cigarettes with the tobacco pulled out, according to court documents.