The Phillies are one win away from capturing their first World Series title in 28 years, and Eyre, acquired for right-hander Brian Schlitter, is right in the middle of a bullpen largely responsible for the National League champions getting this far.
Eyre has appeared in five playoff games, allowing one run over three innings. He's playing in his second World Series, six years after his first as a member of a Giants club that lost to the Angels in seven games in 2002.
Following the Phillies' Game 4 win, Eyre categorized the club as a whole as a loose bunch of players who are enjoying their time in the World Series as much as they're trying to win it.
To illustrate, Eyre chuckled as he recounted a conversation he had with Jimmy Rollins while facing his only batter on Sunday, Rays second baseman Akinori Iwamura.
"On the 2-1 pitch, I tried to throw it 100 miles an hour," Eyre said. "I told that to Jimmy out there. I said, 'But I only throw 90.' And he said, 'Yeah, sometimes.'
"That's the fun we're having right now. Obviously, when you're up by some runs and you're winning, it's a little easier to smile out there. I've been here 2 1/2 months now, but it feels like a lot longer with the guys' acceptance of me ... especially in the 'pen."
Alyson Footer is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.