O'Sul ‧ le ‧ van, Sir Peter /əʊˈsʌləv ə n, əʊˈsʌlɪv ə n/ BrE AmE
(1918–) a popular British horse racing ↑ commentator (=someone who describes horse races as they are happening, on television and radio) . He was a commentator for almost 50 years until 1997, and his voice is still well known to British people.