Sly secretly cast in Guardian 2?

[BmorePat87]

http://screencrush.com/guardians-of-the-galaxy-2-sylvester-stallone/

Sly Stallone has been seen at the hotel in Atlanta where the Guardians 2 cast is staying with a script in hand.

Oh, and he was also headed to the set in Chris Pratt's car...

A source says it's just a cameo, but who knows. Maybe a Tango and Cash joke/reunion with Kurt Russell.

[RoyleRedlegs]

Gunn is really pulling out all the stops.