The Brewers placed Hardy on the disabled list Wednesday with a severely sprained ankle and expect to be without their young shortstop for 2-6 weeks.
"My first instinct was that it was going to be broken," said Hardy, who suffered the injury trying to score the go-ahead run in the eighth inning of an eventual Brewers win on Tuesday night. "I heard a pop and ... it was pretty painful. I thought that was going to be it."
With the Brewers and Phillies tied at 2, Hardy snapped an 0-for-15 slump with a double. He then tried to score on a single to shallow center field, but Phillies catcher Sal Fasano had the plate blocked, and didn't budge when Hardy tried to slide home.
"It was like running into a wall," Hardy said. "Right before I started my slide, I saw an opening underneath him. Right when I started my slide, he dropped down and I couldn't get there. He didn't budge one bit."
X-rays Tuesday night revealed no broken bones, and an MRI scan Wednesday afternoon confirmed the sprain to the inside part of his ankle, but did not reveal any more serious ligament or cartilage damage.
For Hardy, that was the best news he could have gotten.
"I was a little nervous because of the pain I was in [Tuesday] night and even [Wednesday] morning," Hardy said. "I thought for sure it was going to be something bad."
With Hardy out, Bill Hall will serve as the everyday shortstop, and the team recalled outfielder Corey Hart from Triple-A Nashville to fill out the 25-man roster.
Hardy, 23, is batting .242 this season with five home runs and 14 RBIs, and had started 29 of the Brewers' 39 games. He joined starting pitchers Ben Sheets and Tomo Ohka, both out with shoulder injuries, on the 15-day disabled list.
Hart began the season on the Opening Day roster, but appeared in just three games before he was optioned to Nashville on April 18. He was batting .320 with four homers and 21 RBIs at Triple-A.
Adam McCalvy is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.