Palio de Siena

Jockey Luigi Bruschelli of the "Bruco" ( Caterpillar) parish struggles with his horse after the start of the third practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

Horses of "Bruco" (Caterpillar) parish try to bite the rope before the start of the third practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

Jockey Jonatan Bartoletti of the Valmontone parish (C) rides his horse at the start of the third practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

Jockey Luigi Bruschelli of the "Bruco" (Caterpillar) parish struggles with his horse on the starting ropes of the third practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

Jockey Giuseppe Zedde of the "Aquila" (Eagle) parish rides his horse during the third practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

Jockey Luigi Bruschelli of the "Bruco" (Caterpillar) parish struggles with his horse on the starting ropes of the third practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

Jockey Giovanni Atzeni (R) of the "Istrice" (Porcupine) parish shout with jockey Jonatan Bartoletti of the Valmontone parish at the start of the third practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

The Andrea Mari jockey the "Tower" (Tower) parish leads ahead of the jockey of " Oca" ( Goose) parish during the second practice for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

The Andrea Coghe jockey the "Selva" (Forest) parish rides during the second practice for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

The horse of the "Chiocciola" (Snail) parish is escorted by a groom before the second practice for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

The horse of the "Onda" (Wave) parish is refreshed by a groom outside the stall after the second practice for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano Rellandini NO SALES.STEFANO RELLANDINI (REUTERS)

The horse of the "Aquila" (Eagle) parish is seen before the second practices for the Palio of Siena, Italy August 14, 2017. REUTERS/Stefano RellandiniSTEFANO RELLANDINI (REUTERS)

The horse of the Aquila parish is escorted by a groom before the first practices for the Palio race in Siena, Italy August 13, 2017. REUTERS/Stefano Rellandini NO SALESSTEFANO RELLANDINI (REUTERS)