Justin Tuck hasn't been sleeping well the past five days.
The two-time Pro Bowler and the New York Giants defensive captain is upset how the defending Super Bowl champions opened the season against the Dallas Cowboys last week.
Tom Coughlin's team lost 24-17, but the score was not indicative of the way the Cowboys dominated.
Tony Romo threw three touchdown passes. DeMarco Murray rushed for 131 yards. The Dallas defense shut down the Giants' running game and limited Eli Manning and his receivers to two big plays.
It left a sour feeling after the game, and it was still there for many of the players on Monday as they returned to practice for Sunday's game against Tampa Bay (1-0).
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