Cardinals rookie Flaherty has no-hitter through 6 vs Brewers
Aguilar connected with one out in the seventh Friday night at Miller Park. The homer tied the score at 1.
Flaherty had struck out 12 before giving up a hit.
The 22-year-old right-hander began the night with a 3-2 record and a 2.66 ERA in nine starts this season.