bob arums states ther was a fight wher he put him out cold. do have any footage of there fights or fight .
There's no footage and the only time they fought that I know of was at the 2005 World Cup where Korobov won an RSCO. Arum is full of ****, as per usual.
You can find some info here. http://www.eastsideboxing.com/forum/showthread.php?t=91052 There's a long road ahead of him, he'll have to learn the pro stuff and the language.
I dunno, probably at 152 when they were a bit younger. Jacobs didn't really come on hard until he was at 165, although he was a good 152 pounder.