If you want to go out with a bang, then now is the time.
However, I feel that we haven't seen the end of Wladimir Klitschko.
If there's a way that he could avoid his mandatory rematch against Anthony Joshua, then that's exactly what I would do.
Granted, Klitschko put on one of the more impressive fights of his career, by dropping and pummeling Anthony Joshua during the second half of the fight.
I feel that if Klitschko would have spent a little more time to the body of Joshua then he would have slowed Joshua down even more, and possibly stopped him. After all, Joshua was winded after he scored his knockdown over Klitschko, cause when he dropped Klitschko, Klitschko got up and dominated the rest of the round, and the rest of the fight until round nine when Joshua managed to get himself together and take advantage of that second wind.
Personally, I was rooting for Klitschko, as I thought that he'd be less likely to come up positive in a test. This is pure theory on my part of course.
Both fighters landed some serious shots to the head and body of each other, and I am sure that there was a significant piece of “prime” taken out of Joshua. This fight was clearly the hardest fight that Joshua ever had to endure and while he showed a great warrior's heart and championship attitude, he also showed what would happen when sharp, crisp, right hand comes ripping down the middle, on to his chin. Not saying that his chin suspect, but it's evident that it's not granite.
Personally, I wanted Wladimir to win, as I felt that Deontay Wilder would have an easier time with Klitschko than he would Joshua. With Joshua, Wlad, Wilder, and possibly Fury, the heavyweight division is about to be on fire! Too bad Deontay Wilder is Amweica's only champion in the division, we need to hurry up and get a title on Jarrell Miller, I'm sure that there's enough to go around, then we're really going to have some fun.