Darrelle Revis In Violent Altercation in Pittsburgh ... Cops Involved

NY Jets star Darrelle Revis was involved in a violent altercation in Pittsburgh over the weekend -- but there seems to be a big dispute over what really went down.

Revis' lawyer, Blaine Jones, issued a statement saying the NFL star was assaulted by 5 men in the South Side area. The lawyer said Revis was injured and sought medical attention.

Jones is adamant Revis is the victim.

But here's where things get weird ... WTAE in Pittsburgh says Revis is the one under investigation for the incident -- with sources claiming he and his group were the aggressors and men in the other group suffered serious injuries.

WTAE says their sources claim Revis is expected to be hit with FELONY criminal charges any minute.

We spoke with the Jets -- they're aware of the situation and have spoken with Darrelle.