Gus has his number and is a bad stylistic matchup for Jon. Their last fight proved that and for 25 minutes. Jon had to barely edge out round 2 (which could've easily been scored for Gus by the judges) and he had to steal round 4 in the last 30 seconds to 'win' their fight. He was behind on the cards and getting busted up badly. That's proof enough for me that he has no real answer for Gus. If he did, don't you think he would've been begging for a rematch or done it instantly after their first encounter? Instead, he rejected the immediate rematch and then said "No" again to the rematch after both just fought and beat their respective opponents.
^
Common sense, it goes a long way. :icon_idea