With the Braves leading 4-2 in the bottom of the inning, the man jumped onto the field from the stands near the Atlanta dugout and ran toward center field.
The reaction from fans was a mix of gasps and roars.
Turner Field security officers reacted quickly, chasing after the man from different directions and tackling him in center field.
The officers surrounded the man, covering him from view, and quickly escorted him off the field. There was no indication that the unidentified man offered any resistance.