NAPLES, Feb 26 (Reuters) - Argentine soccer great Diego Maradona denied he owed millions of euros in unpaid Italian taxes on Tuesday after he was mobbed by media and fans on his return to Naples where he twice led the local team to league titles. The tax collection agency says it is owed almost 40 million euros ($52.3 million) by the former World Cup winner, most of which is interest built up since 1984 when he joined Serie A club Napoli. "I am innocent," Maradona told a news conference in the southern Italian city. "I want to believe in the Italian justice system - I don't owe them a lira. ... More...