Boxing champion Anthony Joshua slammed after tweeting pic of him praying in a mosque

 British boxing world champion Anthony Joshua came under fire after tweeting a picture of himself praying in a mosque.
The IBF heavyweight title holder took time out of his training to visit the mosque in Dubai, but was hit with criticism by fans ,with many already unfollowing him.
Joshua, 27, is not a Muslim, and has previously said he doesn't follow any religion, but rather has an interest in them.