Pinter (leg) was carted off the field after suffering an injury during Wednesday's joint practice with the Vikings, Mike Garafolo of NFL Network reports.
Robinson (undisclosed) reverted to the Ravens' injured reserve list Wednesday, Aaron Wilson of KPRC 2 Houston reports.
Giddens (hamstring) participated in Wednesday's practice, Nathan Brown of The Indianapolis Star reports.
Coach Shane Steichen told Kevin Bowen of 107.5 The Fan Indianapolis on Wednesday that Pierce (ankle) is "in a great spot right now. ... Hopefully, we will have him back soon."
Coach Shane Steichen confirmed Warren suffered a groin injury during Wednesday's joint practice with the Falcons but provided no additional information, James Boyd of The Athletic reports.
Warren suffered an apparent groin injury during Wednesday's practice, Joel A. Erickson of The Indianapolis Star reports.
Warren rejoined his teammates on the sideline without a helmet after suffering an apparent groin injury during Wednesday's practice, Stephen Holder of ESPN.com reports.
The Colts signed Moore to a contract Tuesday.
The Colts placed Towt (undisclosed) on injured reserve Tuesday.