Diana Kipyogei

Athletics Integrity Unit head Brett Clothier sheds light on the rise of Kenyan doping cases and the challenges facing the AIU and Kenyan athletics

Kipyokei and fellow Kenyan Betty Wilson Lempus both tested positive for triamcinolone acetonide and were found to have interfered with the investigations into their cases

Here’s a round-up of photos, stories and videos from the Boston Marathon