Giants put Marvin Austin on IR

NEW YORK -- The New York Giants officially placed defensive tackle Marvin Austin on injured reserve, wide receiver Ramses Barden and center Adam Koets on the reserve/physically unable to perform list, and waived injured wide receiver Duke Calhoun.

The Giants now have 85 players on their current active roster -- five more than they would normally be allowed at this time. The NFL has given the Giants, along with the New York Jets, permission to retain an extra five players since they have to play two preseason games in four days, following the postponement due to Hurricane Irene.

Both teams will have to cut their rosters down to 80 players on Friday, following their final preseason games. Then they will have to make their final cuts, down to 53 players, on Saturday.

On a conference call with reporters Tuesday afternoon, Giants coach Tom Coughlin was asked whether he is considering not playing his starters at all on Thursday against the New England Patriots, considering they have just two days off in between games.

"Well, under these circumstances, yeah," Coughlin said.

Austin, the team's second-round draft pick out of North Carolina, suffered a torn pectoral muscle in the team's second preseason game against the Chicago Bears and will miss the entire season.

Barden and Koets, by going on the PUP list, will not be eligible to play until at least Week 7. Barden is still trying to recover from a broken ankle suffered last November. Koets is trying to come back from a torn ACL suffered last season and recently had arthroscopic surgery on the same knee.

"That decision was made with the health and well-being of the player in mind. They're just not ready to go," Coughlin said of Barden and Koets. "We've spent an awful lot of time rehabbing these two players, and let's hope they can get themselves in position that when needed, they're ready to go."

Calhoun, a second-year player out of Memphis, appeared in nine games for the Giants last season and suffered a hamstring injury this preseason.

Kieran Darcy is a staff writer for ESPNNewYork.com.