IRVING, Texas - The Dallas Cowboys on Thursday took a hit to their offense three days before the regular-season opener.
Wide receiver Terry Glenn will miss at least two more weeks and possibly more, according to team owner and president Jerry Jones.
Glenn had arthroscopic knee surgery to remove a cyst on the back of his knee on August 1, which forced to him to all of the preseason.
After returning to practice on Wednesday, Glenn sat out Thursday's practice due to swelling on the knee, Cowboys coach Wade Phillips said.
The 33-year-old Glenn is coming off back-to-back 1,000-yard seasons. He had 70 receptions for 1,047 yards in 2006 and led the NFC with by averaging 18.3 yards per reception in 2005.
Patrick Crayton likely will replace Glenn in the starting lineup. The fourth-year receiver started three preseason games in Glenn's place.
A first-round pick of the New England Patriots in 1996, Glenn has 593 career receptions for 8,823 yards and 44 touchdowns in 11 seasons.
Dallas opens the season Sunday night with a home game against the New York Giants.