Q: Context: Anthony Joshua vs. Wladimir Klitschko was a professional boxing match contested between Anthony Joshua and Wladimir Klitschko. The event took place on 29 April 2017 at Wembley Stadium in London, England, with Joshua's IBF and the vacant WBA (Super) and IBO heavyweight titles on the line. Joshua won the match via technical knockout in the 11th round. Klitschko announced his retirement from boxing a few months after the fight.

Question: who won the boxing between joshua and klitschko? Let's give stream of consciousness first:
The relevant information to answer the above question is: Joshua won the match via technical knockout in the 11th round. Therefore, the final answer is Joshua.