Sign up today for the CNBC Sport Newsletter Paris police deployed thousands of officers to control crowds at some of the city's hot spots, using teargas and arresting dozens following the win of the city's football club Paris Saint-Germain in Saturday's Champions League final. Footage aired on news channel BFM showed scenes of tension and brief skirmishes around PSG's Parc de Princes stadium in western Paris, where over 40,000 watched the club win its second consecutive title on giant screens.