The Ravens traded Gradkowski to the Broncos on Wednesday, with the move becoming official following his physical on Thursday. Gradkowski was Baltimore's starter in 2013 but was moved to backup duty in 2014.
In Denver, he'll have a shot to start again.
"(Last season) was very difficult for me, but I came out of it a better player and a better person. I have a chip on my shoulder now," Gradkowski said, via The Denver Post. "I feel like I have a lot to prove and I can't wait to get started with that."
Gradkowski is expected to compete with Matt Paradis for the starting center job. Gradkowski does have familiarity with what the Broncos want to do offensively. Coach Gary Kubiak and offensive coordinator Rick Dennison were both on the Ravens staff in 2014.
"I think (Kubiak) bringing in players he had before will help bring the other players along, so that's a benefit, too," Gradkowski said.
The Ravens have parted ways with a former 2012 draft pick.
After Matt Birk retired following Baltimore's Super Bowl victory, Gradkowski stepped into the starting role at center. He did not have a good season and was replaced in 2014 by Jeremy Zuttah following a trade with Tampa Bay.
The Ravens and Broncos will also swap 2016 draft picks as part of the deal. It's assumed the Ravens will receive the higher pick in the trade.
The Ravens listed the following players as inactive for Sunday’s game against the Texans: Wide receiver Michael Campanaro, cornerback Chris Greenwood, linebacker Arthur Brown, defensive tackle Terrence Cody, guard Gino Gradkowski, offensive lineman Ryan Jensen and defensive tackle Casey Walker.
Defensive lineman Chris Canty (ankle) was listed as questionable, but is active for the game. Canty has not been able to practice all week.
The Ravens are 6 1/2-point favorites.
The Ravens ruled the following players inactive for Sunday's clash with the Jaguars: wideout Michael Campanaro, cornerback Antoine Cason, running back Lorenzo Taliaferro (foot), linebacker Arthur Brown, defensive tackle Terrence Cody, guard Gino Gradkowski and defensive end DeAngelo Tyson.