And just in case you are tempted to blame modern commercialism for the decline in standards of sportsmanship, The Times letters page contains this apt reference:
" . . . in book five of The Aeneid, during a running race, Virgil writes that Nisus “rose from the slime and threw himself in the path of Salius and knocked him head over heels” in order to allow his dear friend Euryalus to win. Even 2,000 years ago they were not averse to a bit of cheating in sport."