“Workaholics” star Blake Anderson, fractured his spine Saturday night … jumping off his roof onto a beer pong table … and the incident was all caught on tape.

Blake is currently undergoing surgery to treat the fracture and will probably be hospitalized for a few months.

The word was, Blake was throwing a party at his L.A. house when the accident went down — attended by Tyler the Creator and members of his rap crew. We’re told cops shut the entire thing down not long after the roof-jumping.

Hopefully he won’t suffer any permanent damage…

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