Ridgeway exited Thursday's practice with a foot injury, Nick Underhill of NewOrleans.Football reports.
Allen made his Colts practice debut in Thursday's joint practice with the Falcons, Noah Compton of SI.com reports.
Downs is excited to play alongside veteran wide receiver Keenan Allen, whom the Colts signed to a one-year contract Monday, Paul Bretl of USA Today Colts Wire reports.
Warren (groin) is expected to miss about a week, but his status for Week 1 against the Ravens isn't in any danger, Ian Rapoport of ESPN and NFL Network reports.
Warren (groin) suffered a strained abductor in Wednesday's practice but is expected to return to practice next week, NFL reporter Jordan Schultz reports.
Lance (undisclosed) returned to practice Tuesday and worked with the first-team offense in New Orleans' joint practice with Dallas, Nick Underhill of NewOrleans.Football reports.
Giddens (hamstring) participated in Wednesday's practice, Nathan Brown of The Indianapolis Star reports.
Estime is expected to miss some time with his ankle injury, Ross Jackson of WWL Louisiana 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.
