Top National Basketball Association Draft pick Victor Wembanyama said he felt good after his first practice with the San Antonio Spurs and received a warm welcome that excited him for actual games.

The 19-year-old Frenchman, considered the greatest NBA prospect since four-time Most Valuable Player LeBron James, joined his new teammates ahead of next week's start of Summer League contests.

"Felt really good," Wembanyama told reporters after the workout.

"I had a warm welcome with the guys and I just can't wait."

The 7-foot-4 center will join the Spurs in Las Vegas, where they are set to face the Charlotte Hornets next Friday and the Portland Trail Blazers on 9 July.

That would send Wembanyama against second overall pick Brandon Miller of Charlotte and third selection Scoot Henderson of Portland.

Wembanyama said he expects to play one or two games in Las Vegas.

He is coming off a run to the French league finals that ended earlier this month and a decision not to play for France in the Basketball World Cup later this year.

Wembanyama said he felt even better about his selection by the Spurs after getting some time with other players on the court.

"I was told beforehand there was a good dynamic with the team on and off the court and I started to feel it already," Wembanyama said.

"It just makes me even more certain that this is a good environment."

Wembanyama is just getting to know Spurs coach Gregg Popovich, the 74-year-old Hall of Fame legend who is the longest-tenured head coach in American sports after guiding the Spurs since 1996.

"I thought I would experience the yelling a bit earlier, but I haven't yet," Wembanyama said.

Popovich, a five-time NBA champion who guided US NBA stars to Tokyo Olympic gold, has mentored star big men David Robinson and Tim Duncan as well as French guard Tony Parker in their adjustments to the NBA.