Ed Orgeron speaking to reporters Thursday in Covington. 

COVINGTON — Tyler Shelvin has rounded into shape. 

Now, he must improve his academics.

Shelvin, the decorated defensive tackle signee from Lafayette, will not enroll with other freshmen in June, coach Ed Orgeron told reporters Thursday before a Tiger Tour event in Covington.

“We expect most guys to be in,” the coach said from the Southern Hotel. “The one that I know won’t be in right now is Tyler Shelvin because he’s going to summer school. I expect the rest of the guys to be in.”

Six of LSU’s 23 signees in the 2017 class enrolled in January, and the other 17 were expected to enroll in three weeks for the start of the summer semester June 5. Shelvin won’t be with them for the duration of summer workouts, Orgeron said.

The coach said he believes Shelvin will need a full summer of school to complete his transition from high school to college.

Asked if he had confidence that Shelvin will enroll in time for preseason camp, the coach said, “He’s got some work to do. I feel like he will be.”

Shelvin has spent this spring trimming his weight. Orgeron said he’s gone from 383 pounds to 325, and the coach said earlier this week that he expected Shelvin to play as a freshman.

Missing summer workouts won’t help. Players are able to meet with position coaches two hours a week during the summer and can work out with strength coaches six hours per week. Plenty of players have missed workouts and excelled as rookies, though. That includes edge rusher Arden Key. He missed the 2015 summer because of a transcription issue that was not cleared up until August before his freshman season.

Shelvin was the top-ranked prospect in the state and the fourth-best defensive tackle in the 2017 class, according to 247Sports’ composite rankings. LSU is expected to use him at nose guard and, potentially, as a defensive tackle in sub-packages.

“He is a very explosive young man. I expect him to help us this year,” Orgeron said earlier this week. “He’s at nose (guard), but he can play tackle. He has similar qualities to Dorsey.”

Follow Ross Dellenger on Twitter, @RossDellenger.