PHOENIX -- A scary moment occurred during the fourth inning of the Dodgers' 4-3, 11-inning win over the D-backs on Sunday, when Los Angeles rookie right-hander Dustin May was hit in the head by a liner off the bat of Jake Lamb, which led to May's departure.

With the bases loaded and one out, Lamb drove a pitch from May directly back to the righty with an exit velocity of 91.6 mph (per Statcast), hitting him on the right side of the head. May immediately dropped to the ground, holding his head.

May passed the concussion protocol after the game and said he had no headaches or other symptoms, with the injury being described as a head contusion. He said it helped that the ball got a slight piece of his glove before it hit the band on the side of his hat.

“I’m really just kind of upset that I didn’t catch it,” said May, the Dodgers’ No. 2 prospect per MLB Pipeline. “We’ve just got to look at the positives, that I’m OK.”

May was on his back on the mound while the training staff and manager Dave Roberts came out to examine him. After a few minutes, May got up and walked to the Dodgers’ dugout, while left-hander Adam Kolarek took over for Los Angeles.

As May was lying on the ground, he didn’t want to get up too fast in fear of making the pain worse.

“When it hit me at first, it really just frightened me,” May said. “And then when I was on the ground, it was like, ‘Well dang, I wish that wouldn’t have happened.’ Then I was like, I didn’t want to rush it in getting up because I’ve seen other people do that and it is a worse outcome.”

The ball ricocheted off May’s head into left field, and a pair of runs scored on the play. Meanwhile, Lamb watched May get checked over while kneeling near first base.

“Any time someone goes down to the ground like that, I don’t care who you’re playing, we’re not in this to hurt people, and I wish nothing but the best for that guy,” Lamb said. “Hopefully, he’s all right. That was a scary moment.”

May had taken the mound to start the fourth after Ross Stripling tossed three scoreless innings. Stripling watched May get hit on a TV monitor from behind the visiting dugout, and he later offered a reason for May avoiding a serious injury.

“He has a lot of hair to cushion the blow,” Stripling said.

Moving forward, May said the training staff wants him to reach out if he has any lingering effects. As long as he continues to check out fine, his next step will be moving past the incident the next time he takes a mound, whenever that may be.

“I’ve been hit before, just not in the head,” May said. “You can’t let it frighten you. You’ve got to go out and do your job, no matter the outcome, you’ve got to go out there and compete.”