World heavyweight champion Anthony Joshua receives surprise 'early morning' visit from drug testers

World heavyweight champion Anthony Joshua in the early hours of Thursday morning received a surprise call from drug testers. 


The surprise call comes just 12 days after Joshua's emphatic victory over Ukrainian Wladimir Klitschko to claim the vacant WBA and IBO heavyweight titles.

The 27-year-old posted the video to his Instagram stories before 8am with the caption, "Drug testers knocking early doors".
 
In the footage, a gentleman can be seen reading through a list of questions which Joshua has to answer. 

According to him, the questions he was asked includes;
Has the athlete performed altitude simulation in the last two weeks? 
Has the athlete donated blood in the last three months? 
He responded "No" to both questions.