Jalen Hill, a five-star center who committed on Sunday to UCLA, could look significantly different when he arrives on campus in 2017.

The Corona Centennial junior-to-be turned 15 in December. He could easily be a 2018 prospect based on his age alone. Hill is touted as a defensive center, but his offensive game is developing as rapidly as his 6-foot-8 body, according to his high school coach, who noted that Hill’s father is 6-9 and his mother is “at least 6-3.”

“Most kids who are this tall this young can’t chew gum and walk, but Jalen is one of the fastest, most agile players on our team,” Centennial basketball coach Josh Giles said. “A year ago, sure, he was more of a defensive guy, but he’s increased his range and he is a much better outside shooter. He’s got much more to his game than just defense.”

Giles thought enough of Hill’s perimeter skills to call the Scout.com five-star prospect a stretch-4. Hill’s offensive development was on display earlier this month when he set a record for the 16U USA Basketball team on its way to a gold medal at the FIBA Americas Championship. He connected on 88 percent (15 of 17) of his field goal attempts in the tournament’s five games, breaking Jahlil Okafor’s 2011 mark of 71 percent shooting.

It has been an unexpectedly eventful summer for Hill, who wasn’t anticipated to issue a commitment this early. His decision boiled down to UCLA and Arizona, according to Giles.

Hill was on an unofficial visit to UCLA last weekend when he made the verbal pledge to play for Bruins coach Steve Alford.

“I wasn’t expecting him to commit and he didn’t talk about committing until after his junior year,” Giles said. “But he was growing tired of the recruiting process, all the calls and all the crap on social media. Between UCLA and Arizona, I don’t think he felt like he could choose wrong.”