Florian Kempf's fourth field goal of the game, a 21-yarder with 4:30 to play, gave the New Orleans Saints a 19-17 victory over the Bears, the last undefeated team in the NFL, yesterday in Chicago.

Kempf also kicked field goals of 48, 31 and 42 yards, and John Fourcade threw a 14-yard touchdown pass to Eric Martin in the final week of games involving primarily replacement players.

"We didn't deserve to win," said Chicago Coach Mike Ditka. "They moved the ball and we didn't."

There were no Bears regulars seen in or around the stadium for the game, which drew a crowd of 46,813, up from last week's 32,113.

"I'm proud of the job these players have done in three games for us," said Saints Coach Jim Mora. "I'm happy to see the strike is over but these replacement players did a heckuva job."

The Bears scored 10 points in a span of 17 seconds in the first quarter, capitalizing on two Saints errors.

Bills 6, Giants 3:

In Orchard Park, N.Y., NFL champion New York lost its fifth straight on Todd Schlopy's overtime field goal that gave Buffalo the victory in a game marked by 258 yards in penalties, nine turnovers and five missed field goals.

"We're looking down a real long barrel," Giants Coach Bill Parcells said. "I think we'll have to win all 10 games to make the playoffs."

Schlopy, a former ski racer who missed three kicks, hit the winner from 27 yards with 19 seconds left to continue the worst start in history for a Super Bowl winner. It was set up by a 30-yard run by Carl Byrum, Buffalo's starting fullback, who had 139 yards in 25 carries.

Three of the losses have been by the Giants replacement team, but New York yesterday played all-pro linebacker Lawrence Taylor and backup quarterback Jeff Rutledge.

Taylor, who crossed the picket line last week, had two sacks and forced a fumble by Byrum that might have set up the winning field goal. But George Benyola missed from 40 yards on the last play of regulation.

Seahawks 37, Lions 14:

All-pro wide receiver Steve Largent, who crossed picket lines earlier in the week, caught 15 passes for 261 yards and three touchdowns -- all in the first quarter -- as Seattle won in Pontiac, Mich.

Jeff Kemp, who also beat the 1 p.m. Wednesday deadline imposed by owners, threw four touchdown passes against the Lions' secondary of replacement players.

Largent's number of catches and yardage were club records, breaking marks he previously held or shared. He left the game with 9:26 remaining in the third quarter.

Until yesterday, Kemp, a backup to regular Dave Krieg, hadn't thrown a pass this season.

49ers 34, Cardinals 28:

Joe Montana's fourth touchdown pass, a low bullet in the final period caught by Ron Heller on his knees in the end zone, gave San Francisco a comeback victory at home.

Montana, leading 17 regular 49ers who defied the strike, threw all of his touchdowns to veterans -- two to split end Dwight Clark, one to running back Roger Craig and the last one to Heller.

Heller had slipped in the end zone making a cut, but got to his knees and caught the pass for a three-yard touchdown with 4:39 left.

Montana completed 31 of 39 passes for 334 yards.

St. Louis led, 21-14, at halftime.

Chargers 23, Raiders 17:

Cornerback Elvis Patterson, a starter for the Giants earlier this season, intercepted a pass by Vince Evans and returned it 75 yards for a touchdown with 18 seconds remaining to give San Diego the win in Los Angeles.

The Raiders were in a second-and-10 situation at the San Diego 33 when Evans threw to Mervyn Fernandez. But Patterson stepped in front of the wide receiver, picked off the pass and ran untouched for the winning score.

Jeff Gaffney missed the conversion, but it didn't matter as the Chargers moved into undisputed possession of first place in the AFC West. Gaffney, a University of Virginia graduate, earlier kicked a 21-yard field goal.

Jets 37, Dolphins 31:

Pat Ryan, having the biggest day of his 10-year career, threw four touchdown passes, including an eight-yarder to McNamara High School graduate Eddie Hunter with 34 seconds left in overtime, as New York won in East Rutherford, N.J.

Ryan completed 30 of 49 passes for 301 yards. Hunter, who attended Virginia Tech, rushed for 94 yards on 20 carries and caught four passes for 34 yards and two touchdowns.

The winning score was set up when George Radachowsky intercepted a pass on the New York 28 and returned it to the Miami 31.

The Jets led, 31-17, with 6:18 remaining in regulation before replacement quarterback Kyle Mackey, who failed in three previous tries to stick with an NFL team, brought back the Dolphins.

Browns 34, Bengals 0:

Gary Danielson threw four touchdown passes against an inexperienced Bengals secondary as veteran-laden Cleveland won in Cincinnati.

Danielson, at 36 the oldest Cleveland regular, led a contingent of eight Browns who crossed picket lines Wednesday to play in the season's first meeting of the AFC Central rivals. Accompanying him was wide receiver Brian Brennan.

Nearly half of Danielson's first-half completions were to Brennan, who ended up with a career-high 10 receptions for 139 yards. He also scored Cleveland's first touchdown on a six-yard pass from Danielson.

A defense anchored by veteran ends Sam Clancy and Carl Hairston recorded the first Cleveland shutout since 1983. Cincinnati had no regular players on offense as it was shut out for the first time since 1980.

Cincinnati had just two regulars -- defensive end Eddie Edwards and linebacker Reggie Williams. The Browns had nine regulars.

Tight end Ozzie Newsome, another Wednesday returnee, had four catches for 29 yards to extend his reception streak to 117 regular season games.

Buccaneers 20, Vikings 10:

Kevin Walker returned an interception 30 yards for a touchdown and Arthur Wells recovered a fumble in the end zone to lead Tampa Bay.

The smallest crowd in Buccaneers history -- 20,850 -- watched the game in sunny, 83-degree weather.

The regular Buccaneers and Vikings were among the strongest supporters of the 24-day walkout that ended Thursday. Only one member of Tampa Bay's regular 45-man roster -- center Dan Turk -- crossed the picket line and played yesterday. No Minnesota regulars returned to the Vikings.

Walker and Wells both scored in the third quarter when Tampa Bay took a 17-10 lead after the teams were tied, 3-3, at halftime.

Jim Zorn, the former Seattle quarterback signed by Tampa Bay last Wednesday, completed 20 of 36 passes for 199 yards and was intercepted twice.

Tony Adams, a one-time Kansas City Chiefs backup who last played in the Canadian Football League in 1982, completed 20 of 37 passes for 185 yards for Minnesota. He threw four interceptions and was sacked seven times.

Steelers 21, Colts 7:

Strike substitute Steve Bono threw two touchdown passes and returning veteran John Stallworth became the 18th NFL player to reach 500 career pass receptions as Pittsburgh handed Indianapolis its first loss in three replacement games.

The Steelers' first replacement home game attracted 34,627 in 59,000-seat Three Rivers Stadium, ending a streak of 119 consecutive home sellouts dating to Nov. 5, 1972.

The Steelers fielded six regular starters to none for Indianapolis.

Pittsburgh scored all three of its touchdowns following Colts' turnovers. The Colts lost two fumbles, and quarterback Blair Kiel, replacing the injured Gary Hogeboom, was intercepted three times.

Falcons 24, Rams 20:

In Atlanta, Erik Kramer passed for 335 yards and three second-half touchdowns.

The Falcons overcame a 17-0 halftime deficit against a Rams team that included 11 of its regulars. The Falcons had one.

The Rams, playing in the fourth quarter with no timeouts left, drove from their 20 to the Atlanta 5, where Lyndell Jones intercepted a pass, the fifth turnover for Los Angeles.

Kramer's second-half scoring passes went five yards to Milton Barney, one yard to Joe McIntosh and 19 yards to Lenny Taylor, the last giving the Falcons the lead with 5:40 left.

Broncos 26, Chiefs 17:

Ken Karcher threw for 275 yards and three touchdowns to lead Denver in Kansas City.

Denver took a 2-0 lead in the first quarter when Kansas City's Doug Hudson fumbled the center snap and fell on the ball in the end zone. A few minutes later, Karcher threw his first of two scoring passes to running back Bobby Micho, one of eight regulars to start for the Broncos. The Chiefs' only regular was cornerback Kevin Ross.

Packers 16, Eagles 10:

James Hargrove ran five yards for a touchdown with 9:56 left in overtime and Green Bay won at home.

Hargrove's run capped a 10-play, 76-yard drive on the Packers' first and only possession of overtime, one that featured passes of 12 and 27 yards from quarterback Alan Risher to Lee Morris.

Green Bay has gone 1-1-1 in the three overtime games it has played this season.

The Packers' Max Zendejas in the first half kicked a 42-yard field goal, making him seven for seven in replacement games.