If GGG KO's Brook in spectacular fashion, I have my doubts that Brook will want anything to do with young Spence.
brooks' whole goal is to avoid comp at 147. losses at 147 hurt much more than his loss to ggg will. he will probably move down to 154 and face nobodies.
GGG lose will hurt A LOT.his heart..body..soul......if he was smart he would've fought CANELO...much more money...and a slightly better chance of winning.
Brook is 36 fights in and 30 yrs old. He's looking for money fights before he fucks off back to the bolthole he hid in for a decade. MTF