By Richard Pignatelli
June 18 (Reuters) - Having several times experienced the red-hot atmosphere of an 'Old Firm' derby with Scottish club Rangers, life back in the MLS could perhaps be a little tame for Maurice Edu.
But the 29-year-old Philadelphia Union midfielder believes the same rivalries that are so deeply-ingrained in Europe can evolve in North America, even if it will take some time.
Edu, who spent four years with Rangers, winning three Scottish titles and playing in the Champions League, before a forgettable spell with Premier League Stoke City, returned across the Atlantic to a changed soccer landscape.