Looney announced his retirement from the NFL on Wednesday, Michael Elsen of the Giants' official site reports.

Looney agreed to sign with the Giants on Saturday, Mike Garafolo of NFL Network reports.

The Cowboys activated Looney (knee) from injured reserve Saturday, Adam Caplan of SiriusXM NFL Radio reports.

Looney (knee) was designated to return from injured reserve Wednesday, Rob Phillips of the Cowboys' official site reports.

The Cowboys placed Looney (knee) on injured reserve Saturday, Jon Machota of The Athletic reports.

Looney suffered a sprained MCL in Sunday's loss to the Browns and is expected to miss 2-to-3 weeks, Todd Archer of ESPN reports.

Looney (knee) isn't expected to face a long-term absence after suffering a right knee sprain Sunday, Michael Gehlken of The Dallas Morning News reports.

Looney will be re-evaluated Monday after suffering a sprained right knee during Sunday's loss to the Browns, Rob Phillips of the Cowboys' official site reports.

Looney went to the locker room after suffering a right leg injury in Sunday's game against the Browns, Michael Gehlken of The Dallas Morning News reports.

Looney (ankle) returned to Sunday's game against the Seahawks, Michael Gehlken of The Dallas Morning News reports.