Team Sky said that the Kenyan-born rider had to take an increased dosage of salbutamol after he "experienced acute asthma symptoms" during the final week of the race.
Is bitcoin in a bubble? The price of bitcoin has been soaring this year, and last week alone it jumped from $11,000 to well over $17,000, according to Coindesk.
The FA have begun looking into the reported bust-up between Manchester United and Manchester City players and staff that broke out at Old Trafford on Sunday.
The launch of a US futures contract for bitcoin reflects widespread acceptance of the virtual currency, especially among investors in Asia, though regulators are wary.
The head of Germany's domestic intelligence agency warned that China is allegedly using social networks to try to cultivate lawmakers and other officials as sources.
The first-ever bitcoin future jumped after it began trading on 10 December as the increasingly popular virtual currency made its debut on a major US exchange.
