Originally published on ProWrestlingSheet.

Titus O'Neil has been suspended for unprofessional conduct ... a rep for WWE confirms.

For those who missed it, O'Neil was seen grabbing Vince McMahon by the arm Monday during Daniel Bryan's retirement celebration and the boss was filmed swatting it away.

Most thought it was just a joke ... but apparently not, WWE confirms Titus has been taken off the road for 90 days. No word on what O'Neil was trying to accomplish by tugging on Vince's arm, but it was clearly a terrible idea.

File this under: when good plans go horribly wrong.

UPDATE 7:15 PM PST: Multiple backstage sources tell us the suspension has now been reduced to 60 days.  Unclear if the backlash over today's decision played a part.

According to the New York Post, WWE officials say Titus O'Neil “acknowledged the gravity of his mistake” in a text message after the incident -- allegedly writing, "I feel like sh** now so if you have to let me go, I understand. Stupid mistake.”