The Rugby World Cup is warming up nicely in Japan where England play Argentina on Saturday morning in what may be their first stiff test while the World Athletic Championships come to their climax in Doha. Nevertheless the big event of the weekend, one likely to end in tears, either of joy or sadness, will be over in a mere two-and-a-half minutes. This is of course the Prix de l’Arc de Triomphe at Longchamp, and joy will be unbounded if Enable can become the first horse to win the Arc three times. Several have won it twice, among them Tantieme (1950-1) the invincible Ribot (1955-6), Alleged (1977-8) and Treve (2013-4). Treve is the only double winner to have gone for a third victory and failed. So history may be made on Sunday.