O'Sullivan broke rules by putting chalk on the table - Daily Star
Ronnie Using CC Chalk ON EUROSPORT LIVE... - YouTube
Chalk and cues: Ronnie and Selby discuss snooker | Blue or green chalk? ๐ค Brass or titanium ferrule? ๐ค Just use a broomstick instead... ๐งน Ronnie O' Sullivan and Mark Selby discuss how