Kemba Walker lifts U.S. men's basketball team over Greece in World Cup

Kemba Walker scored 15 points, Donovan Mitchell scored 10 on his 23rd birthday and the U.S. contained NBA MVP Giannis Antetokounmpo, defeating Greece 69-53 in a second-round game at the World Cup on Saturday.

Harrison Barnes and Derrick White each scored nine for the U.S. (4-0), which can clinch a quarterfinal berth Monday in multiple ways.

It needs either a win over Brazil or a Greece win over the Czech Republic or through a three-way tiebreaker, if necessary.

Antetokounmpo, the Bucks star and reigning NBA MVP, scored 15 points for Greece (2-2).

The U.S. national team has won 57 consecutive games in international tournaments with NBA players, starting with the 2006 world championships bronze-medal game and continuing through every FIBA Americas, world championships, World Cup and Olympic event since.

One day before the season opener against the Vikings, Falcons receiver Julio Jones got his long-awaited contract extension, agreeing to a three-year, $66 million deal.

The extension is nearly fully guaranteed when he signs. It locks in Jones through the 2023 season. Jones had 113 catches for 1,677 yards and eight touchdowns last year.

Kyle Busch held off Justin Allgaier for the final four laps to win the NASCAR Xfinity race at Indianapolis by 0.132 seconds.

The victory was the 96th of Busch's career, the most by any driver in series history. It also was Busch's fourth win in Indy's Xfinity race. He's also a two-time Brickyard 400 winner.

... Charles Leclerc secured a second straight pole position at the Italian Grand Prix to give Ferrari. Leclerc was .039 seconds ahead of championship leader Lewis Hamilton and .047 clear of Valtteri Bottas. Four-time world champion Sebastian Vettel will start Sunday's race from fourth after finishing .150 behind his Ferrari teammate.

College basketball: Duke says an investigation has found no evidence that former basketball star Zion Williamson received improper benefits. School spokesman Michael Schoenfeld said that a "thorough and objective" probe led by investigators outside the athletic department found "no evidence to support any allegation" that would have jeopardized Williamson's eligibility.

NHL: Goalie Jack Campbell agreed to a two-year, $3.3 million contract extension with the Kings. After earning his first NHL victory in February 2018, he went 10-14-1 with a 2.30 goals-against average last season.

Golf: Alex Fitzpatrick and Conor Gough each won two matches to help Britain and Ireland take a 7-5 lead over the United States in the Walker Cup at Royal Liverpool Golf Club. The biennial amateur event will conclude Sunday with four more foursomes matches and 10 singles matches.