Instead, Turner will withdraw from SMU and pursue a professional career, Yahoo! Sports reported Tuesday.
Turner is seeking a quicker path to the NBA and hopes to sign with a pro team either overseas or in the NBA Developmental League next season, according to the report.
"I had to step back and re-evaluate what my main goal and my dream was," Turner told Yahoo! Sports. "My dream is to be a professional athlete in the NBA, and I think this is what's going to bring me closer to it. In college, you get your degree and everything, but going pro is getting me closer to my dream and what I want to do in life."