Each day we take a look at the main stadia and ticketing news from the 2016 Olympic Games.

Around 30 per cent of registered volunteers have failed to turn up to venues during the Games, according to reports. Volunteer turnout was said to be as low as 20 per cent in some venues.

The diving pool at the Maria Lenk Aquatics Centre was drained over the weekend after athletes claimed they had been suffering from itchy eyes. The pool has been the subject of much criticism after its water turned green last week due to a proliferation of algae.

Brazilian sailboarders criticised the Rio state government for the quality of the water in Guanabara Bay, the venue for the Games’ sailing events. Organisers had deemed the bay, which has been found to contain pathogens that can lead to infection, safe to compete in.

Three swimmers ended up at the Olympic Stadium instead of the Aquatics Centre after a mistake from a bus driver, which led to their event being delayed. Britain’s Fran Halsall, Jeanette Ottesen of Denmark and Belarus’ Aliaksandra Herasimenia were competing in the women’s 50m freestyle semi-final.

Games organisers said over the weekend that ticket sales for the remainder of Rio 2016 looked promising following a difficult first week. 93 per cent of tickets were said to be sold for Saturday’s morning session at the Olympic Stadium, with 79 per cent having been sold for the evening session.