"I didn't know that the rivalry is as big as it is", he said.
Garrett is week-to-week after suffering a high-ankle sprain at Wednesday's practice.
Joe Haden, cut on August 30 in his eighth summer with the Browns, is listed as the starting left cornerback on the Steelers depth chart for the season opener against the Browns Sept. 10 at FirstEnergy Stadium.
The Browns might not have No. 1 pick Myles Garrett (ankle) for the opener, but the focus will be some other impact rookies.
Pittsburgh has won the last four consecutive games and only two have been close.
Coleman, who caught four passes for 66 yards in the team's dress rehearsal game against Tampa Bay, missed six games as a rookie with a broken hand.
Cleveland coach Hue Jackson is confident in Kizer, and imagine the bump if the QB is somehow able to top Pittsburgh in his first start.
"He is a starting quarterback in the National Football League, whether he is young, old or whatever, so he has to go play and he knows that", Jackson said of Kizer, who will be Cleveland's 27th different starting QB since 1999.
According to ESPN's Adam Schefter, two teams that are anticipated to have a strong interest in Haden's services are the New Orleans Saints and Kansas City Chiefs. How did he suffer the high ankle sprain? If you get somebody thrown into your leg, it could happen to any one of our guys.
Jackson didn't think Louis would also be let go and the second-year receiver had little to say about the altercation. "You can sell all these different things, but if you don't hit the quarterback, he'll have time to dissect the defense". "I know our fans are excited about coming to see our team play and our opponent that we are playing", he said.
If Garrett can not play against Pittsburgh, Carl Nassib figures to be the next man up, with Nate Orchard taking his spot as the third end in the rotation.
In fact, dating back to Week 11 in 2007, at least one rookie has started in each of the last 160 weeks of NFL regular-season football. Cleveland has some weapons (Jamie Collins, Christian Kirksey, Danny Shelton if he plays) but it's not enough. If the Crow flies for a lot of yards on Sunday, it will likely mean the Browns are in the game and are having some degree of success against the Pittsburgh defense. "The next man up may do something better than the guy he just replaced but not as good as the guy he just replaced". We're not going to lose that timing.More news: Sec. of Energy gives go-ahead for emergency crude oil reserves