Morning warm-up – Tuesday 31 July

China's Ye Shiwen after the finish of the women's 200m individual semi-final on Monday. MARTIN BUREAU/AFP/GettyImages

China's Ye Shiwen after the finish of the women's 200m individual medley semi-final on Monday. MARTIN BUREAU/AFP/GettyImages

Your morning warm-up is a bit late today, for which, apologies – we’ve been busy with the big story which remains Ye Shiwen, the 16-year-old Chinese swimmer whose incredible performance on Sunday raised some eyebrows. Shiwen, who will be aiming for another gold today, was quoted by China News Service as saying: “My results come from hard work and training and I would never use any banned drugs.” We’ll have more on this story from our Beijing bureau very soon. UPDATE: The story is now live: Chinese social networks defend Shiwen.

Highlights from today’s schedule include:

Swimming - Men’s 200m Butterfly final due to take place at 19.47. Michael Phelps will be out to avenge Saturday’s defeat by his US teammate Ryan Lochte. Ye Shiwen will also be back in the pool for the Women’s 200m individual medley final at 20.39.

Equestrian - The British equestrian team will be looking to overhaul rivals Germany in the final section of the three-day event competition, the showjumping, in Greenwich Park

Gymnastics - China, the US and Russia are likely to battle it out for the podium spots in the final of the women’s team.

Travel update:

In London, after a very smooth day of travel in yesterday, Tuesday began with a hiccup: the Central Line on the underground was partly suspended for around three hours, with spectators who had planned to use that route to get to the Olympic park advised to use local buses or overground trains. Mark Odell, our transport correspondent, reports that the fire brigade is still investigating after a driver reported smelling smoke on a train at Leyton. Ben Fenton in Stratford says that flows of people coming into the Olympic park are steady, with no notable drop off in numbers as yet.

And a selection of good reads to peruse with your morning coffee: