The outfielders both sprinted toward right-center, converging on a Melvin Upton Jr. fly ball to the warning track in the eighth inning of the A's 3-1 loss to the Padres at the Coliseum on Thursday.
"Neither of us called for it," Reddick said. "I think we were both just so committed."
Burns' left elbow slammed into Reddick's face, but that wasn't the worst of the damage. Reddick was also kneed below the belt.
Reddick remained on the ground for a few minutes, as A's manager Bob Melvin and a trainer tended to him. He remained in the game and was in good spirits afterward in the clubhouse.
"He's OK," Melvin said. "Looked pretty gruesome, but he fought his way through it."
Reddick said it wasn't as bad as it looked or as people anticipated it would be. He stayed on the ground to let the pain from his stomach go away.
The right fielder said he barely missed the ball before he was hit, adding that he would have made the play if he were one step quicker. After looking at the replay, he felt as though he had a better shot at the ball than Burns.
Reddick didn't expect Burns to be near him because they had been playing Upton Jr. to pull the ball all series. Burns is simply that fast. The mistake proved to be costly, as Justin Upton drove Upton Jr. in two batters later with a sacrifice fly.
On the sacrifice fly, Upton popped the ball up in foul ground on the first-base line. Stephen Vogt, who has started 45 of 54 games at catcher, made a nice play to snag the pop-up, but Upton Jr. tagged and beat the throw home.
It looked as though Vogt may have been better off letting the ball drop, but he refuted that notion after the game.
"Thinking back to it I wouldn't do it any different," Vogt said. "Didn't consider it."
Vogt said it's tough to tell where one is when playing first at the Coliseum because of how much foul territory there is. He didn't think his lack of experience at first base played any part in the run scoring -- Upton Jr. just used his speed.
"That's just being a baseball player and trying to make a play for your team," A's catcher Josh Phegley said. "I don't have a problem with it."
Trevor Hass is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.