I feel for Big Foot, reminds me of what happened to Akiyama (being fed to the wolves).
I'd say there's a small chance of Big Foot surprising Overeem with a bomb and clinching at the cage/grinding. If he can do that then take it to the ground, he *may* have that chance.
Realistically he's going to get bullied and mauled, dropped with a straight shot and uberkneed to a TKO.
R.I.P. PRIDE FC
GSP . Vitor Belfort . Alexander Gustafsson . Daniel Cormier . Dan Henderson