Edinson Cavani has been struck down by ‘black magic’ as the former Manchester United striker endures a goal drought at Argentinian outfit Boca Juniors, with an astrologist asking supporters to ‘pray’ for his return to form. Now, perhaps there is a simpler explanation. At the age of 37, maybe it’s as straightforward as Father Time catching up with Edinson Cavani, one of the modern era’s most prolific centre-forwards slowing down in the autumn of an outstanding career. Well, Giorgio Armas is not having any of that. Speaking to Ole, Armas believes there must be a rather more sinister reason why t…