Vaughn, who joins the Bucks' summer-league squad for the third straight season, started alongside draft pick D.J. Wilson, who scored 11 points in his pro debut.
The annual NBA Las Vegas Summer League has become a landmark off-season event.
The day is finally here for the summer league version of the Chicago Bulls.
Brandon Ashley, a center from Arizona, led the Mavericks with 21 points, including 10 in the second quarter, and was on the receiving end of a pair of nifty assists from Smith in the final quarter.
Jamal Murray had hoped to play with the Nuggets in summer league, but while he's come a long way since offseason surgery in May, he won't.
Some standouts to watch for will include Marcus Paige (North Carolina), Perry Ellis (Kansas), Charles Cooke (Dayton), and Jack Gibbs (Davidson).
Trump says West needs will to survive
What I keep hearing from leaders around the world is how grateful they are that America is leading again on the world stage. Poland received its first United States delivery last month, a one-time deal that it hopes to make permanent.
The Timberwolves also listed first-round pick Justin Patton out of Creighton, but he won't play after suffering a foot injury during early workouts.
This summer marks the 11th MGM Resorts NBA Summer League in Las Vegas appearance for the Wolves (2006-10, 2012-17) where they are 25-30 all-time.
Williams was 8-of-15 from the field and 4-of-7 from behind the 3-point line.
As the Bucks continue their play in Summer League over the upcoming week, we'll have all of the details and analysis you can ask for here on site.