Kareem Hunt is a dangerous weapon.

The Kansas City running back is averaging 7.4 yards per carry this season, and he's cracked the century mark in rushing in three of the four games he's played. Atop the NFL leaderboard in rushing yards, he's a key component of the Chiefs' offense, and a true challenge this Sunday night for the Texans defense.

"He's built low to the ground," head coach Bill O'Brien said. "He's a very, very physically tough guy to tackle. He's fast, he's a stretch-cut runner, he does a great job of pressing the line of scrimmage and has really good vision."

Hunt's carried for four scores, and caught another two touchdowns, amassing 659 yards from scrimmage along the way. 

"He has that ability to make the big play in the run game, which is difficult to do, but he also is methodical throughout the game," defensive end J.J. Watt said. "He's consistent throughout the entire game. He has a lot of yards in the second half which is impressive as well. So, any time you have the number one rushing attack in the National Football League, you're doing something right, and it starts with having a great running back and he's obviously done a great job so far."

For Kansas City head coach Andy Reid, Hunt's another dynamic player to plug into the offense along with the likes of tight end Travis Kelce and receiver Tyreek Hill. But Reid said it's the mental side of Hunt that's been a huge benefit.

"I appreciate Kareem's attitude and diligence to learn the game," Reid said. "That's what impresses me the most. He works his tail off and is so diligent in all phases of the game, which is unique for a young guy."

Hunt and the Chiefs come to NRG Stadium Sunday night with a perfect 4-0 record. Houston beat Kansas City in Week 2 here last season.