BEREA, Ohio -- Browns wide receiver Kenny Britt has already played with 10 starting quarterbacks in his nine-year career, so when he predicts big things for rookie quarterback DeShone Kizer, it carries a lot of weight.

"He's growing each day, each day,'' Britt said Sunday before day four of Browns training camp. "From OTAs, I could tell he was a different person. I actually asked him yesterday has the offense slowed down for him. He said, 'Yes,' and I could tell that he's looking at certain things. He's seeing the defense before the snap count, and once he lines up, he knows there's certain things he has to do, and he's going to be one of the great ones.''

One of the great ones? Already? He can see that after only a few training camp practices?

"Yeah, if he keeps going, focuses on the track that he's on, to tell you the truth, he could be one of the great ones,'' Britt said. "He's learning fast and he's got a strong arm.''

Britt, who played six games with 2016 No. 1 overall pick Jared Goff last season in Los Angeles, didn't compare him directly to the Cal product.

"They're both taking it one step at a time, to tell you the truth,'' said Britt. "They're both young players, and they're both growing at the same rate.''

Britt isn't the only veteran player who's noticed the lights coming on for Kizer, the No. 52 overall pick. Quarterback Brock Osweiler praised him this week as well.

"I think DeShone is a tremendous quarterback,'' said Osweiler. "I really do. Where I first saw him in the spring to where he is today, he just keeps getting better and better. I could tell he had a tremendous summer training and throwing, things like that. He's in great shape physically. He's really on the screws when it comes to his playbook. The kid has a big arm. There's not a throw he can't make, so I think he has a ton of talent. I'm very excited to see what he does."

On the second straight day in pads Sunday, Kizer completed 5-of-10 attempts, with one 15-yard TD pass in a red-zone drill to Jordan Payton on the right side of the end zone, and one touch-sack. He also had one ball batted at the line of scrimmage by Nate Orchard; and one pass to tight end David Njoku in the end zone appeared to be tipped by linebacker Dominique Alexander, and it bounced of Njoku's midsection.

It was that incompletion that Jackson was likely referring to when he said Kizer needs to play more "tall ball" in some instances. He and Njoku are both 6-4, and they could've operated up in thinner air where the 6-0 Alexander might not have been able to get a hand on it.

"We left some others out there,'' said Jackson. "We have to learn to use everybody's length. A couple of throws DeShone had, he could have used the guy's size to his advantage. That's a learning thing, which is a good thing to find out so guys understand that they have to play big that way.''

Kizer is also tall enough that he should be able to avoid balls batted at the line of scrimmage. The one by Orchard was a learning experience, one that Kizer will likely try not to repeat.

But the lights are definitely coming on for the rookie, and he outshined Kessler --with whom he's splitting first-team reps -- on Sunday. The 15-yard TD to Payton was a laser shot that showed off Kizer's exceptional arm talent.

Now, it's a matter of continuing to develop chemistry with players such as Britt, who's coming off a 1,000-yard season with the Rams despite a challenging QB situation.

"It takes experience, and it takes practice, and that's why we practice each and every day, to make sure that we're on the same page,'' said Britt. "If we're not, it's to go back and talk, go over what he's thinking about, what I'm thinking about on certain plays and the defense that he sees and the defense I see.''

Britt, a first-round pick out of Rutgers in 2009, has already helped break in Goff and other young quarterbacks in his career. He's also worked with Vince Young, Kerry Collins, Matt Hasselbeck, Jake Locker, Ryan Fitzpatrick, Austin Davis, Shaun Hill and Nick Roles.

He doesn't hand out high praise easily, so when he says Kizer will be "one of the great ones,'' he's seen enough to know.