Hernandez said he set himself up for that catch by shading Peraza toward right field and playing shallower than usual.
"When I saw the ball, I said, 'I have a chance to grab it,'" Hernandez recalled. "If I had played a little farther back or closer to left field, I wouldn't have a chance."
Hernandez, who has played regularly since Denard Span went on the disabled list April 23 with a sternoclavicular joint sprain, grew visibly excited Tuesday upon being told that Hall of Fame center fielder Ken Griffey Jr. insisted he'd rather make an outstanding catch than hit a home run. Hernandez could relate.
"That's the same for me," he said. "I don't care if I'm 0-for-4 or 4-for-4. If I make a good catch to help the team and the pitchers, for me, it's the best."
• Giants manager Bruce Bochy said Span will begin an injury rehabilitation assignment Tuesday with Class A Advanced San Jose.
• Shortstop Brandon Crawford, on the DL with a right groin strain, doubled in the first of three at-bats in six innings of an injury rehab game with Double-A Richmond on Monday. Bochy said Crawford will try playing seven innings Tuesday.
• Utility man Aaron Hill endured an apparent setback in his recovery from left forearm stiffness. Hill underwent an MRI, which showed some irritation remained.