Ex-Belgium international Emile Mpenza is suing his former Plymouth Argyle manager Paul Sturrock over claim he was forced to miss training after taking Viagra.
According to Sturrock's autobiography 'Luggy', the former Manchester City striker could not train since he was still aroused after taking the erectile dysfunction drug the night before.
The Scot wrote: 'I was told in all seriousness that Emile had taken Viagra the previous night and still had an erection and wouldn't be able to take part in training.
'The excuse has gone down in the annals of urban myths but I swear it's true.