The Packers came back from a loss in Detroit last week to win what even this early was a must game against Tampa Bay (5-1).
But as they did two weeks ago against Minnesota, the Packers let down after holding that 18-point lead at halftime. They only were assured of the 21-16 win when Trent Dilfer misfired twice to Warwick Dunn from the Green Bay 42 in the final minutes.
Dilfer led the Bucs on scoring drives of 63 and 90 yards following Hardy Nickerson's block of Ryan Longwell's 47-yard field goal attempt in the third quarter.
To the Packers, winners of 22 straight at home, Tampa seemed to be good enough to be a challenge all season.
Giants 20, Cowboys 17
Tito Wooten, who scored on a fumble return in the Giants' upset of the Cowboys at the Meadowlands last season, got two interceptions this year. The first he took 61 yards for a TD in the third quarter.
Charles Way scored on a 3-yard run for New York (3-3), which used Danny Kanell at quarterback for most of the game after Dave Brown reinjured his chest.
Dallas (3-2), which beat Philadelphia when the Eagles bungled a last-second field goal attempt, almost tied it. But right tackle Erik Williams could not get set after Troy Aikman's completion to the Giants 17, forcing a 10-second penalty, allowing the clock to run out.
Steelers 42, Ravens 34
Jerome Bettis rushed for 137 yards, Yancey Thigpen had 162 yards receiving and Will Blackwell returned the second-half kickoff 97 yards for Pittsburgh (3-2).
But Kordell Stewart was the story. At one point the was 3-for-8 with three interceptions. In the second half, he was 11-of-14 for 181 yards. And his TD run came after the host Ravens (3-3) closed to 35-32 and put the game away.
Bills 22, Lions 13
The game-turning safety came two plays after Eric Smedley downed Chris Mohr's punt at the I. Barry Sanders ran off right tackle before getting tripped by Bruce Smith and tackled by Phil Hansen.
Rookie running back Antowain Smith put the game away for the Bills (3-2) with a 56-yard TD run. Scott Mitchell's 8-yard TD run tied the score for visiting Detroit (3-3) with 5:54 left in the game.
Dolphins 17, Chiefs 14