The Cowboys lost in the divisional playoff round to the Carolina Panthers, 26-17, on January 5, 1997.
the Carolina hurricanes
Yes. The score was 24-17. It was the first loss of the New Orleans Saints season followed by a loss to the Tampa Bay Buccaneers and the Carolina Panthers.
The Cowboys lost to the Patriots, Eagles, and Redskins in the regular season and to the Giants in the playoffs.
Indians
Through Week 16 of the 2008 season, the Chargers are not in the playoffs. However, should they defeat the Denver Broncos in the last game of the season played December 28 they will make the playoffs as the AFC West Division champion. If they lose or tie, the Broncos will make the playoffs as the AFC West Division champion.
They play preseason games in August, then regular season games September through December - if they make the playoffs they play in January until either they lose or the playoffs end in the Superbowl in early February.
The 2010 New England Patriots went 14-2 in the regular season and 0-1 in the playoffs. They lost to the New York Jets and the Cleveland Browns in the regular season and the New York Jets in the playoffs.
In 2009, the New Orleans Saints lost to the Dallas Cowboys, Tampa Bay Buccaneers and Carolina Panthers.
Chiefs would need to win against Tennessee and Oakland and Steelers would have to lose to Carolina and Cleveland.
I assume you mean the Stanley Cup? It was last season's champions, the Detroit Red Wings.
No, the season is long. The best teams lose about a third of the time. Even the worst team can beat the best team sometime during the season.