Is Arno Botha injured again?

I saw on the Bulls website some comments of a knee-injury of Botha so I am not sure whether it is a new injury.   I am sorry for the guy - he is a good rugby player, but I think we can count the number of games he played in the past tow years on the fingers of one hand.  

Too much creatine. His knees just can't hold his weight- as his body is out of proportion.  He just has to fall awkwardly and he injuries himself