Glov is a big middleweight. He wouldn't drop down. Mayweather is making Canelo fight at a catchweight as it is, so making Golovkin drop BELOW light middleweight would be way too much of an ask.
I give respect to Mayweather for fighting Canelo. I said for years that theres a handful of guys that have something in their arsenal better than Mayweather. Alvarez has the power of guys like Cotto or Mosley, but he actually has a jab and style. Mayweather will def have some things to think about, so fair fucks, he's actually fighting a guy I could see some people favouring.
I had only seen Sky Sport's shit on Golov before this, and then the Macklin fight which I stayed up until 4am to watch. Man, the undercard was SHIT. Luckily over here we had Crolla (or Lolla)/Rees, Scott Quigg and Paul Smith's awesome KO to keep us amused in the mean time.
Froch beats Golov though. I can't believe that Calzaghe thinks Groves could beat Froch. I'm a Joe Cal fan, but behind Lennox, Froch is the greatest UK fighter of all time (killed me to put him above the Rickster

)