Cameron meandered to second base on the play as trainers rushed to Martinez's aid. Cameron wore a horrified expression, and once he got to second, he slumped down and looked toward center field.
"I've been in a similar situation, and I know all kinds of things go through your mind," Cameron said. "I'm praying for him."
Cameron wasn't even aware that his first-base coach, Ed Seder, or the Giants' players had come by to reassure him.
"I just went out there to make sure [Cameron] was all right," Seder said. "It was kind of weird. I don't think anybody knew what happened or even where the ball went. Everything just kind of stopped."
Martinez, who walked off the field under his own power and was coherent after the incident, was to be taken to the hospital for an evaluation and CT scan.
It was a maddening way to end what manager Ken Macha called "a two-month road trip."
Cameron hits the ball hard on his final swing of a terrific series for him, and he'll remember the sound of the impact of the ball on skull rather than the feel of the perfect swing and contact.
Cameron was on base in 10 of his 13 plate appearances during the three-game series, and he will bring home a .571 batting average, a 1.143 slugging percentage and a .769 on-base percentage. Those are numbers worthy of recognition.
No one asked him about them, though.
Manny Parra, on the other hand, was asked about his pitching performance, one that lasted 4 1/3 innings and 85 pitches.
"They swing the bats very well, and [Giants starter Matt] Cain was on his game," Parra said. "It was who was going to take the momentum first. I didn't make a couple of pitches when I wanted."
Parra got into a bit of trouble in the fourth, but he limited the damage to a pair of runs after allowing back-to-back doubles to Fred Lewis and Bengie Molina to lead off the inning. He did not survive the fifth, and it began with a walk to Cain.
"You can't walk the pitcher, especially leading off the inning," he said. "I've never done that in the regular season before. It's a recipe for what happened."
Parra, who beat the Giants twice last year, said that his timing was off and that he was a little behind on his pitches.
"I expect to be better the next time," he said.
Parra also had empathy for Martinez.
"It's unbelievably scary," he said. "It can happen to any pitcher. Balls go by your head every game. It's extremely unfortunate. That's something you don't want to watch."
The Brewers had their leadoff hitter on four times during the game and scored once. J.J. Hardy singled to open the seventh and eventually scored on Jason Kendall's sacrifice fly.
"Cain had a lot to do with that," Macha said. "I've seen Cain pitch before, and he's got a good fastball. I was more impressed with his ability to throw the breaking ball for strikes."