1A fighting cow charges a reveller during festivities in the bull ring following the third running of the bulls on the fourth day of the San Fermin festival in Pamplona July 9, 2010. Three people needed hospital treatment following a run that lasted six minutes and twenty three seconds according to local news sources. (Photo: Eloy Alonso/Reuters)

2A reveller is tossed by a heifer bull during festivities in the bull ring after the third running of the bulls at the San Fermin festival in Pamplona. (Photo: Joseba Etxaburu/Reuters)

3Spanish bullfighter Miguel Angel Perea gets tossed by a bull during San Isidro's bullfighting fair at Madrid's Las Ventas bullring May 15, 2006. Madrid celebrates its patron saint San Isidro every year with a fair which includes cultural events and concerts, as well as three weeks of bullfights. (Photo: Susana Vera/Reuters)

4Spanish bullfighter Salvador Cortes is tossed by a bull during a bullfight in the southern Spanish town of Malaga August 17, 2006. Cortes suffered minor injuries. (Photo: Rafael Marchante/Reuters)

5Spanish matador Alejandro Talavante is tossed by a bull during a bullfight in the Maestranza bullring in Seville, southern Spain, April 21, 2007. Talavante was not injured. (Photo: Javier Barbancho/Reuters)

6Spanish matador Juan Jose Padilla gets tossed by a bull during a bullfight at Seville's Maestranza bullring April 29, 2007.(Photo: Javier Barbancho/Reuters)

7Spanish bullfighter Francisco Marco is tossed by a bull, almost severing his ear, during the second bullfight of the San Fermin festival in Pamplona July 8, 2010. (Photo: Vincent West/Reuters)

8A bandillero is tossed by a bull during the fourth bullfight of the San Fermin festival in Pamplona July 10, 2010. Bandilleros are bullfighters' assistants whose role is to weaken the bull's massive neck and shoulder muscles using harpoon pointed sticks known as banderillas (little flags). (Photo: Eloy Alonso/Reuters)

9Spanish bullfighter Enrique Ponce is tossed by a bull during a bullfight in the southern Spanish town of Malaga August 17, 2006. (Photo: Rafael Marchante/Reuters)

10Spanish matador Julian "El Juli" Lopez gets gored during the sixth bullfight of the San Fermin festival in Pamplona July 12, 2010. (Photo: Eloy Alonso/Reuters)

11A heifer tosses a runner during festivities in the bullring after the seventh running of the bulls of the San Fermin festival in Pamplona July 13, 2010. (Photo: Joseba Etxaburu/Reuters)

12French bullfighter Sebastian Castella gets tossed by a bull during the last bullfight of the San Fermin festival in Pamplona July 14, 2010. (Photo: Susana Vera/Reuters)

13A heifer grabs the shirt of a runner during festivities in the bullring after the seventh running of the bulls of the San Fermin festival in Pamplona July 13, 2010. (Photo: Joseba Etxaburu/Reuters)

14Spanish bullfighter Jose Tomas is tossed by a bull during a bullfight at Monumental bullring in Barcelona, July 5, 2009. (Photo: Stringer Spain/ Reuters)

15Spanish bullfighter Manuel Jesus "El Cid" is tossed by a bull at the Plaza de Toros on the fourth day of the San Fermin festival in Pamplona July 9, 2009. (Photo: Eloy Alonso/Reuters)

16A Miura fighting bull gores a runner during the sixth bullrun of the San Fermin festival in Pamplona July 12, 2009. (Photo: Joseba Etxaburu/Reuters)

17A Miura fighting bull gores a runner during the sixth bullrun of the San Fermin festival in Pamplona July 12, 2009. (Photo: Joseba Etxaburu/Reuters)

18Spanish bullfighter "Rafaelillo" is tossed by a bull during the sixth bullfight of the San Fermin festival in Pamplona July 12, 2009. (Photo: Susana Vera/Reuters)

19A reveller gets tossed by a wild cow after the second running of the bulls at the San Fermin festival in Pamplona July 8, 2006. (Photo:Vincent West/Reuters)

20Bullfighter Jose Tomas is tackled by a bull during a bullfight at the Malagueta bullring in Malaga, southern Spain, April 12, 2009. (Photo: Jon Nazca/Reuters

21Matador Miguel Angel Perera is trampled by a Fuente Ymbro ranch fighting bull during a bullfight at the Plaza de Toros at the San Fermin festival in Pamplona July 13, 2009. (Photo: Eloy Alonso/Reuters)

22Colombian bullfighter Luis Bolivar is gored by a bull during a bullfight at the Malagueta bullring in Malaga, southern Spain August 20, 2009. (Photo: Jon Nazca/Reuters)

23Spanish bullfighter Jose Prados "El Fundi" is tossed by a bull during a bullfight on the eighth day of the San Fermin festival in Pamplona July 13, 2008. (Photo: Dani Cardona/Reuters)

24A heifer attacks a reveller at the end of the fifth running of the bulls of the San Fermin festival in Pamplona July 11, 2008. (Photo: Joseba Etxaburu/Reuters)