SURGERY FOR MCGLOCKTON: Kansas City Chiefs defensive end Chester McGlockton has decided to have back surgery and will miss the opener Sunday against Oakland, according to broadcast reports.

ESPN and WDAF-TV said Saturday that McGlockton was in Los Angeles to have his back examined and would have surgery there. He left the team's training camp in River Falls, Wis., on Aug. 13 to undergo treatment in Kansas City.

Kansas City general manager Carl Peterson had no comment Saturday on McGlockton, The Kansas City Star reported.

McGlockton, a four-time Pro Bowl player, signed a five-year, $30 million contract with the Chiefs after the Raiders declined to match the Chiefs' offer sheet.

CARDS SIGN WADSWORTH: On the eve of their season opener, the Arizona Cardinals signed a six-year contract agreement with first-round draft pick Andre Wads-worth on Saturday.

The defensive end from Florida State, picked No. 3 in the draft behind quarterbacks Peyton Manning and Ryan Leaf, had threat-ened to sit out the season. He is the last draft choice to sign.

Wadsworth was en route to Dallas, where the Cardinals open the season against the Cowboys on Sunday.

PHIL SIMMS' SON INJURED: Chris Simms, the son of former New York Giants quarterback Phil Simms and one of the nation's most sought-after high school quarterbacks, injured his non-throwing right shoulder.

But he is not expected to miss his school's opening game.

The left-handed Simms, who plays for Ramapo High School in New Jersey, separated his shoulder during a scrimmage against St. Joseph of Montvale Friday night. He was running near the left sideline when he was tackled from behind.

GREEN GETS NEW DEAL: One day before the start of the NFL season, Minnesota Vikings owner Red McCombs changed his mind and rewarded coach Dennis Green with a three-year contract extension.

"It never entered my mind that we would do a contract extension before the season was over," McCombs said Saturday. "But every day that I saw Dennis work, and every day our personal relationship grew, I knew it was something I wanted to do."

Green, who took the job in 1992 and is the NFC's longest-tenured coach with Green Bay's Mike Holmgren, will earn $900,000 this season in the last year of his current contract. Terms of the extension, which runs through the 2001 season, were not disclosed.

Auto racing

DURA LUBE 200: Dick Trickle held off hard-charging Dale Earnhardt Jr. by about three inches Saturday in the Dura Lube 200 in Darlington, S.C., winning for only the second time in his NASCAR Busch Grand National career.

Trickle, a 56-year-old journeyman who will be seeking his first Winston Cup victory Sunday in the Southern 500, had finished third in his last four Busch starts at Darlington Raceway. The final four laps of the race were run under caution after debris blocked the track.

"I knew we were hurting at the end," Trickle said. "But after third, third, third, third, the only places to go were second and first."

Earnhardt, the series points leader, charged from off the pace in the closing laps, the beneficiary of his own decision to take tires when the leaders declined to stop under caution with 15 of 147 laps remaining.

VANCOUVER MOLSON-INDY: Alex Zanardi is still oh-for-1998 in qualifying.

The Italian driver, closing in on his second consecutive CART FedEx Series championship, started Saturday's final round of qualifying for the Vancouver Molson-Indy on the provisional pole. He ended the day a disappointing third, trailing Dario Franchitti of Scotland and American Bryan Herta.

Franchitti, coming off his first CART win two weeks ago at Elkhart Lake, Wis., picked up the fifth pole of his career and fourth of the season, turning a lap of 101.157 mph.