Sage have a glass jaw and his wrestling and striking sucks, Gall was a guy with 3 pro fights and after Sage first pro fight, some idiots including Kenny Florian was touting him as a "potential GSP times 10" after he beat a complete bum.
You can't just throw shit out like that, GSP was so special, a guy with zero amateur wrestling experience who still managed to challenge very accomplished wrestlers like Matt Hughes, Josh Koscheck and Johny Hendricks in their own field of expertise.