Memphis Grizzles guard Ja Morant (left) passes the ball against San Antonio Spurs guard-forward Devin Vassell on February 28, 2022 in Memphis, Tennessee. Photo: IC

Ja Morant produced a virtuoso 52-point performance as the Memphis Grizzlies defeated the San Antonio Spurs 118-105 in the NBA's Western Conference clash on Monday.

Morant made 22 of 30 shots from the field in a magical display for Memphis, who bounced back in style following their defeat to the Chicago Bulls on Saturday.

Morant's masterpiece included two dazzling season highlights - an astonishing dunk over the Spurs' Austrian player Jakob Poeltl.

He then topped that on the stroke of halftime with a gravity-defying fadeaway jump shot after plucking a length-of-the-court pass from Steven Adams out of the air.

The win leaves Memphis in third in the Western Conference with 43 wins and 20 defeats, trailing the Golden State Warriors (43-18) and the leading Phoenix Suns (49-12).

Elsewhere on Monday, the Miami Heat shut down DeMar DeRozan to rout the Chicago Bulls 112-99 in their top-of-the-table Eastern Conference clash.

Gabe Vincent and Tyler Herro scored 20 points apiece while Jimmy Butler and Bam Adebayo each had 15 points as Miami's balanced offense completed a convincing victory.

But Miami's hard-nosed defensive display also played a huge role in the win, with the Heat ending DeRozan's remarkable run of 10 consecutive games with 30 points or more.

DeRozan was held to 18 points and was never allowed to settle into his rhythm by a rampant Miami, who improved to 41-21 at the top of the conference standings. The Bulls remain in second at 39-23.

"We set multiple things for him - we blitzed him, we tried to give him everything we had and make him uncomfortable," Vincent said of Miami's defense of DeRozan. 

"He made some shots despite it, but we came out with the win."

The emphatic win kicks off a challenging run of games for ­Miami, who play the NBA champions Milwaukee on Wednesday and Philadelphia on Saturday either side of a road game against the struggling Brooklyn Nets.

"This means a lot - we're playing a lot of tough teams this week," Vincent added. "We wanted to set the tone for the week we want to have."

Zach Lavine led the scoring for Chicago with 22 points while DeRozan and Ayo Dosunmu both had 18 points each. Nikola Vucevic was held to 14 points.

Save for a brief spell early in the first quarter, Miami led throughout and after erupting in the third quarter - outscoring Chicago 36-21 - had taken a 24-point lead to effectively settle the contest.

In other games on Monday, Brooklyn were brought back to earth following Saturday's upset of the Bucks after being thrashed 133-97 by the Toronto Raptors.

Scottie Barnes had 28 points and 16 rebounds with four assists for Toronto while Precious Achiuwa had 20 off the bench. Barnes made his first 11 shots in a red-hot shooting display for the Raptors. 

The depleted Nets, without the injured Kevin Durant and the unvaccinated Kyrie Irving, trailed by 39 points at one stage in the fourth quarter as Toronto cut loose.

The Bucks meanwhile got back to winning ways with a 130-106 win over the Charlotte Hornets.

Giannis Antetokounmpo led the scoring for Milwaukee with 26 points while Jrue Holiday added 21 and Bobby Portis 20.