Anthony Joshua shows off ripped physique and asks 'who's next'?

New IBF heavyweight champion Anthony Joshua
who defeated 'Prince' Charles Martin in the
second round to win the IBF heavyweight title
last week, is already back in the gym and
showed off his fine physique on Instagram last
night.The British boxer asked 'who's next?' as
he prepares to defend his IBF title in his next
fight. He captioned his post :
''No time to wait. Only time to prepare.
Who's next? #AJBoxing''