Dr Eufemiano Fuentes, who stands accused of masterminding one of sport's largest doping rings, faced intense media interest as he arrived at a court in Madrid this morning ahead of his trial.
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Temperatures will reach around 28 Celsius (82F) at their highest.
A minute's silence will be observed at 11am on Thursday in remembrance of those who lost their lives in the Manchester Arena attack.
New research has found those who consumed two cups had a 35% reduced risk, and for those who drank five cups, the risk halved.