According to ProWrestlingSheet.com, there is a rumor floating around that former two-time WWE Cruiserweight Champion Neville may have requested his contractual release from WWE backstage at last night's Raw.
According to their report, Neville was originally scheduled to be the one to challenge Enzo Amore for the Cruiserweight Championship in the Lumberjack Match instead of Kalisto, and Neville was apparently booked to lose that match to Enzo. Those plans apparently had to be changed due to Neville supposedly walking out.
They also noted that the Twitter account known as Pro Wrestling Votes sent out the following Tweets, although it's uncertain who their sources are:
Breaking News:— Pro Wrestling Votes (@WrestleVotes) October 10, 2017
Neville (@WWENeville) quit last night. He walked out.
Sorry to be a damper y'all, but it's not a lie.— Pro Wrestling Votes (@WrestleVotes) October 10, 2017
As of right now this is strictly a rumor. WWE has not released an official statement of any kind, nor has Neville himself.