"It feels good to have finally committed," Ellis said in an e-mail. "It was a tough decision but I know I made the right one in SLU."
He visited the United States in December with his family and made official visits to his three finalists. After making the trip to St. Louis, he returned home and took a few weeks to figure out where he wanted to go to school next year.
"Well I just really liked the way the team was coached," Ellis said in an e-mail. "I felt really comfortable around the guys. And liked the fact I could be part of something special over the next couple years with the group."
Ellis becomes the fifth commitment for the Billikens for next season.
Salecich and Ellis are teammates at the Australian Institute of Sport.
The 19-year-old Ellis is described as a power forward who can also play small forward because of his ability to shoot the ball from the perimeter and extend opposing defenses.
Cody's father, Mike Ellis, was a shooting guard in Australia's National Basketball League. He helped the Perth Wildcats win championships in 1990 and 1991 and later served as head coach and general manager of the club after retiring as a player.