At 69 years old, Robert Dunaway is a force to be reckoned with both on and off the softball field.

"He's an intense coach, he likes to win," Richard Potter said.

Tuesday night, his Harris County Senior Softball League team claimed a victory, but the celebration was short-lived. Just minutes after the game ended, Dunaway collapsed from a heart attack.

Players Potter and Robert Penn were right there with him by the bleachers.

"(It) sounded like he fell pretty hard to the ground. Someone yelled, 'Call 911 and get the defibrillator,' and we went into action," Penn said.

Penn ran to the scorer's booth and grabbed the automated external defibrillator.

It's mandatory for all players to get defibrillator training once a season and to learn how to administer CPR. A few of the players are Houston firefighters and they took it upon themselves to train everyone in case something like Dunaway's heart attack were to occur. Neither one of them thought they'd ever have to use it.

"We put the pads on Robert's chest here and here and waited for the instructions from the machine," Robert Penn said. "I looked up and said, 'There has to be somebody more qualified than me to do this CPR.'"

All that training paid off, and thanks to them, Dunaway survived. But the two refuse to take all the credit. They said it was a joint effort, with about a dozen or so people pitching in to help.

"Everybody in the training that we've done did their job, even though we're not experts in this," Potter said.

"We all just did a little bit of what we needed to do," Penn said.