practice

Volunteers take a break during a rehearsal for the opening ceremony of the 14th IAAF World Championships in Moscow...Volunteers take a break during a rehearsal for the opening ceremony of the 14th IAAF World Championships at the Olympic stadium in Moscow August 7, 2013. The event will be held from August 10 to 18. REUTERS/Fabrizio Bensch (RUSSIA - Tags: SPORT ATHLETICS)

Fabrizio Bensch/Reuters

Volunteers take a break during a rehearsal on Wednesday for the opening ceremony of the 14th International Association of Athletics Federations World Championships at the Olympic stadium in MoscowRead more

Polo players practise on Watergate Bay beach in the Cornish sunshine ahead of this weekend Veuve Clicquot Polo on the Beach at Watergate Bay, North Cornwall, which is taking place on Saturday 18th and Sunday 19th May 2013.

Ben Birchall/PA

Polo players practise on Watergate Bay beach in the Cornish sunshine ahead of this weekend Veuve Clicquot Polo on the Beach at Watergate Bay, North Cornwall, which is taking place on Saturday 18th and Sunday 19th May 2013.