San Antonio have powered past Minnesota on their way to the Western Conference finals after another dominant back court performance.

The Spurs raced past the Timberwolves 139-109 on Friday night to win the series in six games.

Stephon Castle had 32 points and 11 rebounds, while Victor Wembanyama posted 19 points.

De'Aaron Fox added 21 points and nine assists and rookie Dylan Harper had 15 points off the bench for the Spurs.

They will face defending champion Oklahoma City in Game 1 of the Western Conference finals on Monday night. The Thunder swept their first two series.

Wembanyama, who bounced back from his stunning Game 4 ejection with 27 points, 17 rebounds, five assists and three blocks in the Game 5 blowout, was well-guarded by the Wolves in Game 6 and had a quiet 19 points in 27 minutes.

But he still served as a constant defensive deterrent in the paint, and he dutifully joined the Spurs in transition whenever they had the opportunity to run - which was often.

The size, smarts and shooting touch of the Spurs guards were too much for the Wolves, who predictably had their hands full with the seven-foot-four Wembanyama.

Castle made his first five three-pointers and went 11 for 16 from the floor. Fox was three from three deep, and Julian Champagnie made four threes among his 18 points for the Spurs, who outscored the Wolves by 97 points in the series and never once trailed by double digits.

Anthony Edwards had 24 points on nine-for-26 shooting for the Wolves, who were again flustered by the Spurs and their relentless switch-heavy defence.

Earlier, Detroit forced Game 7 in their Eastern Conference second-round series against Cleveland, thanks to an inspirational performance from Cade Cunningham.

Cunningham scored 21 points as the top-seeded Pistons dominated the second half to beat the Cavaliers 115-94 on Friday night.

The decisive game is on Sunday in Detroit.

Jalen Duren had 15 points and 11 rebounds while Daniss Jenkins also scored 15 for the Pistons, who have won four games this post-season when facing elimination.

They were down 3-1 to Orlando before winning the last three to advance out of the first round.

Cunningham made five three-pointers as the Pistons went 16 of 36 from beyond the arc. Duncan Robinson, who missed Wednesday's Game 5 with a lower back injury, had four three-pointers and scored 14 points off the bench.

Paul Reed also had 17 points as Detroit's reserves outscored Cleveland's 48-19.

James Harden scored 23 points for Cleveland, who suffered their first home loss of the post-season. Donovan Mitchell and Evan Mobley scored 18 apiece.

Detroit asserted their will on the offensive boards and took advantage of Cleveland turnovers. The Pistons converted 13 offensive rebounds into 20 points. The Cavaliers had 20 turnovers, which resulted in 28 Detroit points.