Jabari Parker signed his official national letter of intent yesterday, more than four months after orally committing to Duke.

The surprise: at first, he pulled out a Florida shirt, not a Duke one. The crowd's reaction? They didn't realize it was a joke.

Chicago Tribune reporter Colleen Kane adds that Parker has been communicating with assistant head coach Jeff Capel regularly as he prepares to transition to the collegiate game.

The No. 2 recruit in the nation, Parker won four state championships in four years at Simeon and was named Mr. Basketball of Illinois twice.

"We're excited for Jabari and his family to join our family here at Duke," Duke head coach Mike Krzyzewski said in a press release. "We are confident he will have a great career, and we are glad to have him in our program."