With Antonio Brown no longer on an NFL roster, the star wide receiver seemingly has more time on his hands.

And he’s apparently decided to go back to school.

Brown has reenrolled at his alma mater, Central Michigan University, with a four-class schedule, entirely online, that began in part last week, according to a source at the school.

“Antonio Brown is currently enrolled in online degree completion coursework at Central Michigan University,” said Heather Smith, a school spokeswoman. “He does not attend classes on a CMU campus.”

Brown posted a photo of his schedule to Instagram on Monday, in story form that is timed to disappear 24 hours later, with the words, “Back to school.” An athletic department spokesman did not immediately respond to a request for comment.

Antonio Brown posted this photo of his four-class schedule at CMU to Instagram on Monday, Sept. 23.

The schedule includes a high-level, eight-week management class and 12-week English class, both of which began last week, Sept. 16, and eight-week religion and sociology classes that begin Oct. 21.

The CMU source, who asked to remain anonymous, said Brown enrolled in all four classes on Sept. 16, before he was cut by the New England Patriots amid allegations of sexual assault. Brown never graduated before leaving CMU in 2009 to pursue a career in the NFL.

He has returned to the school several times since, most recently in June after donating more than $100,000 to CMU for heated benches for its football team.

The last several months have been a rocky time for Brown, who asked for a trade from the Oakland Raiders earlier this month after internal strife with general manager Mike Mayock played out publicly. He was signed by the Patriots days later, in a one-year contract reportedly worth up to $15 million, and played in one game before being released.

Brown first met his accuser, Britney Taylor, while at CMU.

In nine-plus NFL seasons, Brown has earned a Pro Bowl invite seven times and led the league in receptions and receiving yards twice. He took to Twitter on Sunday to air his frustration, writing that he would not play in the NFL anymore.

“These owners can cancel deals do whatever they want at anytime we will see if the (NFLPA) can hold them accountable,” Brown wrote in part. “Sad they can just void guarantees anytime going on 40m 2 months will see if the pay up !”