Simplify the following text for a Grade 10 native English-speaking person.
Original: Sir Robert William `` Bobby '' Robson , CBE ( 18 February 1933 â `` 31 July 2009 ) was an English footballer and manager , who coached seven European clubs and the England national team during his career .
Simplified: Sir Robert ( Bobby ) William Robson ( 18 February 1933 - 31 July 2009 ) was a former English association footballer and manager .