Black said the day off would give Gyorko, who had played every inning of the team's 16 games thus far, a much-needed breather both physically and mentally.
"I think this is just a day for Jedd to watch a game," Black said Sunday. "I think it will give his mind a little rest, based on a number of factors. We'll put him back in there tomorrow in Milwaukee. It's tough to take him out of the lineup."
Gyorko was coming off a Saturday night in which he went 0-for-3 and was hitless in his last 10 at-bats. In addition, Gyorko has had a lot on his mind recently, having signed a contract extension Monday worth $35 million.
He entered the game as a pinch-hitter in the seventh inning of Sunday's 4-3 loss to the Giants, hitting a lineout, then played the final two innings at second base.
Black gave Gyorko a heads-up that he would get Sunday off after Saturday's game to ensure Gyorko got as much of a mental break as possible.
"We told him last night so he wouldn't worry so much about those at-bats from that game," Black said.
Tim Powers is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.