Yes, Illinois State's 2nd leading scorer Sy Chatman has entered the transfer portal. My source at ISU says that the general feelings about this are "good riddance".
Chatman has had "issues" wherever he's been. He initially committed to UMass late in the recruiting cycle in 2018. Bradley was among a number of schools interested, but never offered. He averaged 3.7 ppg as a freshman (2018-19) and was being counted on to become a starter for the 2019-20 season at UMass. But he was mysteriously absent for the first couple months of his sophomore season and missed several games. No explanation was ever given, except "leave of absence". He eventually returned to the team and played in 6 games, all of which UMass lost. In his final game with UMass, he was pulled out of the game by the coach for what I've seen described as lackadaisical play. He then left the team again and
put his name in the transfer portal in mid-December, 2019.
He sat in the transfer portal from mid-December, 2019 until mid-June, 2020 without an offer. Finally, Dan Muller, desperate for a big man, offered him a scholarship and he committed in mid-June, 2020.
Then in his first year at ISU (2020-21), he missed the first 3 weeks of the season for unknown reasons. But then returned for 5 games at the end of November and December, then opted out for the remainder of the season. He announced he was leaving ISU and placed his name in the transfer portal again in the middle of the season. But after not getting any offers for several months, and with Muller still desperate for big men after Dusan Mahorcic left, Chatman had a change of mind and returned to ISU for this past season. In 2021-22 he played the first 20 games, and averaging 13.5 ppg, and 6.1 rpg. He suffered a season ending ACL injury in their January 23 game at Evansville.
So now he is coming off a serious ACL injury, and enters the transfer portal again. Plus, as someone who has already transferred once, he does not qualify for the immediate eligibility if he does sign somewhere else in D1, since that rule only applies to players who have not previously transferred.