The Texans' J.J. Watt had one of the best seasons by a defensive lineman and as a result won this season's NFL Defensive Player of the Year Award in a landslide.

And, he insisted, he's just warming up.

"I can get a lot better. I'm only 23," the second-year defensive end said at the NFL Awards celebration on Saturday night in New Orleans. "I'm still growing as a human being and as a player.

"There's a lot more I can do, and I'm looking forward to exploring what else is out there."

Watt nearly was a unanimous selection, garnering 49 of the 50 votes.

Former Texas A&M and current Denver Broncos linebacker Von Miller received the only other vote.

The Associated Press said the lone non-Watt vote was cast by ESPN writer Ashley Fox.

Watt finished shy of Michael Strahan's league single-season record for sacks, but his impact on pass plays was significant with 20.5 sacks and 16 pass breakups.

Watt follows Baltimore Ravens linebacker Terrell Suggs (2011), Pittsburgh Steelers safety Troy Polamalu (2010), Green Bay Packers cornerback Charles Woodson (2009) and Steelers linebacker James Harrison (2008) in winning the award.

Watt (6-5, 295) is the first defensive lineman to win the award since former Miami defensive end Jason Taylor captured it in 2006.