Sánchez (2-1) allowed three hits in six-plus innings. The right-hander opened the game by striking out Ronald Acuña Jr. with a 100-mph fastball, the first of six strikeouts with one walk.

“If he stays healthy, he’s going to give people fits for a long time,” Braves manager Brian Snitker said.

Sánchez threw 10 or fewer pitches in three straight innings, beginning with the third.

“He has definitely brought, I think, excitement to our rotation,” Mattingly said.

The 22-year-old Sánchez didn’t allow a runner to reach second base until the seventh. Marcell Ozuna had an infield single and Sánchez hit Austin Riley with a pitch.

James Hoyt walked Adeiny Hechavarria with two outs to load the bases. Richard Bleier ended the inning on pinch-hitter Travis d’Arnaud’s groundout.

Kyle Wright (0-4) allowed five runs on seven hits, including three homers, in four innings as his ERA climbed to 8.05.

Freddie Freeman doubled off Nick Vincent with two outs in the eighth for Atlanta’s only extra-base hit.

Fried had been the only healthy member of Atlanta’s projected starting rotation. Atlanta lost ace Mike Soroka for the remainder of the season to a torn right Achilles tendon, and the Braves’ starters began the day with a 5.49 ERA. Miami’s young starters rank fifth in the NL with a 3.94 mark.