IRVING, Texas (AP) -- Dallas Cowboys receiver Terry Glenn is still hopeful of playing this season after having arthroscopic surgery on his right knee for the second time in six weeks Thursday.
Glenn hurt his knee again last week when he tried to return to practice for the first time since the initial surgery Aug. 1 to remove a cyst from the back of his kneecap. That was a week into training camp.
"This gives Terry a chance to play this season," Cowboys spokesman Rich Dalrymple said. "He will do everything he can to get on the field this year."
Still, the team said there is no timetable for Glenn's return.
"I don't have any feel for it as far as how long it could be or would be," coach Wade Phillips said. "We're going to save a spot for him, no doubt. You have eight inactives anyway. We can do that."
While Glenn had surgery, linebacker Greg Ellis (Achilles' tendon) and cornerback Terence Newman (foot) practiced for the second day in a row. Ellis did some individual work with other linebackers and Newman took part in some pass-coverage drills.
Phillips indicated that Ellis and Newman would both travel with the team for Sunday's game at Miami, but wouldn't say if they would play.
Glenn's latest operation was done in Columbus, Ohio, by Dr. Christopher Kaeding, the orthopedic surgeon for Ohio State, the receiver's alma mater. Kaeding removed loose cartilage from the knee.
Dalrymple said Glenn, the 33-year-old receiver in his 12th NFL season, may still need a more extensive microfracture procedure in the future.
Had Glenn opted for the more extensive procedure, he would not have been able to play this season. That would have also been career-threatening.
"Some players certainly would have said my season is through," Phillips said. "For him to say I want to try everything I can to be a part of this team, I think tells you what kind of person he is."
Glenn is coming off consecutive 1,000-yard receiving seasons with the Cowboys, his third NFL team. He also played for New England (1996-2001) and Green Bay (2002).