Lazio are angry over claims that 17 year-old prospect Joseph Minala is actually 41.

The claims are being made in Africa and France by websites.

Lazio have released a statement confirming the paperwork on his birth is "absolutely legitimate" and registered with the football federation.

"Lazio denounce this latest attempt from hostile figures to throw a sinister light on this club" and are prepared to take legal action to "protect the good name" of the club and its players.