So what happens in a catch weight between gsp and Anderson Silva? I know it will probably not ever happen, but if gsp can keep Anderson on his back, Silva could be in trouble. I think Anderson would win hands down in a stand up match, but I honstly think that with GSPs speed, he could avoid the knees and strikes to get inside to take Anderson down. I think GSP is stronger and could do damage if the fight stayed on the mat.