Browns coach Mike Pettine will focus on the top quarterbacks in the draft for the next month or so, but made it clear Tuesday that receiver Sammy Watkins, defensive end Jadeveon Clowney and other top prospects are also on his radar at No. 4.

"(Sammy Watkins) is an extremely explosive athlete,'' Pettine said at the NFL Annual Meeting AFC coaches breakfast. "(He's a) playmaker. He plays the wide receiver position violently, which is something you don't often see.

"To me what jumps off the tape is his passion. He loves football. We interviewed him in Indianapolis and you can tell he absolutely loves the game. He's a guy that I think you want to find a variety of ways to get the ball in his hands because he's special.''

If the Browns pass on a quarterback at No. 4, they can pair Watkins with Josh Gordon and transform their offense. In that scenario, they might be able to come back at No. 26 and land Fresno State quarterback Derek Carr -- or package their No. 26 and No. 35 picks to move up to take Carr.

Or, Pettine could "jump on the table'' for an explosive pass-rusher such as Clowney, who had 13 sacks in 2012, but tailed off to three in 2013.

“Freakish athlete,'' said Pettine. "I think he could take over a game. I think he could change a game. He’s proven that. I had good interaction with him in Indianapolis. As a defensive head coach, I don’t know if I’d be all that upset to turn the card in on Clowney with the fourth pick.”

Pettine isn't fazed by the Clowney's lack of sacks last season or concerns over his work ethic.

"He's shown (the pass-rush ability),'' Pettine said. "I think there were a lot of circumstances. People talked to maybe a maturity thing. …I think if you’re strong and assertive as a coach that you can get that guy to be more focused and get him to be much more consistent. So if you can take a Clowney and get him to play, to get him to get that motor humming and go hard every play, then you’ve got a guy that can absolutely dominate a game.”

Pettine also praised University of Buffalo pass-rushing linebacker Khalil Mack, whose Pro Day he attended earlier this month. Mack, who torched Ohio State for nine tackles, 2.5 sacks and an interception return for a touchdown, will also be in play for the Browns at No. 4. At Buffalo, he set an NCAA record with 16 forced fumbles and is tied in tackles for a loss with 75.