A fan is detained by a riot Gendarme in front of the Eiffel Tower after clashes between fans and police as several thousand supporters celebrated with Paris Saint-Germain soccer players who received the French Championship trophy in Paris May 13, 2013. Paris St Germain's Ligue 1 title celebrations were cut short on Monday after clashes between spectators and police in the west of the French capital. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT SOCCER CIVIL UNREST)