Ellis was drawing interest from Arkansas, Arizona, Florida and Stanford before the Cardinals offered a scholarship and he didn't take long to make his decision.
"I always wanted to be a Cardinal," Ellis told Cardinal Authority earlier this year.
Now more than a year later the All-State performer is making it official by signing his Letter of Intent with the University of Louisville.
"It's exciting that it is going to be official," Ellis said. "I've been looking forward to this for a long time."
Ellis (6'3, 190), who began attending U of L baseball camps at 11 years old, is considered one of the top prospects in the nation at any position, reaching as high as 5th in one publication.
Also known for throwing a no-hitter in the 2008 Little League World Series, Ellis has made frequent visits since making his commitments. He's attended multiple games, including recent football games at Papa John's Cardinal Stadium.
"The atmosphere there is amazing," he said. "The fans really support all the teams there and everyone has the same goals. It's the place to be really."
Ellis is currently playing guard for Jeffersonville.