Burns, who officially suffered a testicular contusion, said the left side of his stomach was still in pain Friday night.
The outfielder was feeling better on Saturday and lobbied to play but was held out of the lineup. He was available off the bench for A's manager Bob Melvin. Sam Fuld started in center field.
After the incident on Friday, Burns remained on the ground for a few minutes, then stood up and took some practice swings before returning to the at-bat. He grounded to first, which scored Fuld and put the A's on the scoreboard with a 4-1 deficit.