Dallas Mavericks rookie Dennis Smith Jr. is a walking highlight reel and will have an impressive collection at the end of his first season in the NBA.The young guard showed off his incredible athleticism in the Summer League and has continued to wow Mavs fans in the pre-season.Smith looks like a certainty to be involved in this year's Slam Dunk Contest and on the evidence of his throwdowns, he'll take some beating.The number nine overall pick is yet to make his regular-season debut but has already racked up an impressive number of dunks that appear to get better.In the Mavericks' 99-96 win over the Orlando Magic on Monday, the 19-year-old added to his collection in impressive fashion.After seeing an open lane, the dynamic point guard exploded to the rim and delivered a monster jam after taking off from almost outside the paint.

He appeared to be airborne for what seemed like an eternity before he threw the ball down which led to a brilliant reaction from the Dallas bench.

Smith ended the night with 16 points, six rebounds and seven in 26 minutes of action.

With his amazing hops, we should expect to see more crazy dunks from the athletic ball-handler throughout the season.

But his all-around display and numbers were hugely impressive and the Mavs will need that from their promising rookie after Seth Curry was ruled out indefinitely with a with a stress reaction in his left leg.

“Statistically and just overall period, I think that is my best overall game," he said post-game. "We came out with the win and I got guys involved, and that’s very important for me to do.
So, I think I did a pretty good job of that tonight."

Head coach Rick Carlisle was encouraged by Smith's display but believes there is still room for improvement from the North Carolina State product.

“Look, [Smith] is getting more comfortable out there. He’s attacking better. I want to see him putting more pressure on the defence and not settling so often for the jump shot," he said.

"You know, he’s virtually impossible to stay in front of. I didn’t see anybody take a charge on him in the college film. Nobody has taken a charge on him in Summer League, and nobody has taken a charge on him in the four games (in preseason), so he needs to keep pressure on the defence.

"And he did some things better tonight. Look, he’s going to be adjusting to things. There’s no two ways about it,” Carlisle said of Smith’s performance."

The Mavericks will now travel to Atlanta to take on the Hawks for their next pre-season matchup on Thursday before returning home to face the same opponents in their regular-season opener on October 19.