Would it be safe to say that his battle with Battling Levinsky on 9/6/1917 was his first bout where he spotted an opponent a considerable weight advantage? Reports say Levinsky had a 25 pound pull in the weights. I don't see anything on his record indicating anyone who had a double-digit advantage like this.
That bout capped of an amazing spring summer offensive for Greb. Thats why when he finally became a wold champion in 1923 Harry Keck the great Pittsburgh sportswriter made a point of saying this event was 6 years overdue.
