Kenyan marathon runner Rita Jeptoo has her two-year ban doubled after an IAAF appeal was upheld by the Court of Arbitration for Sport.
Former world 110m hurdles champion Colin Jackson reveals his sporting career could have gone in an entirely different direction - cricket.
The IAAF finds no evidence to support claims of corruption in the 2017 Athletics World Championships bid process.
Brazil, Greece and Indonesia are among five countries who may be added to the World Anti-Doping Agency's "non-compliant" list.
Audio & Video
Tirunesh Dibaba and Chris Thompson win the Great South Run in Portsmouth.
Her Olympic triumph in 2012 is the defining image of Jessica Ennis-Hill, writes Tom Fordyce, but there was much more that made her remarkable.
At a crucial time for the anti-doping movement, the ramifications of the hacking of medical records are widespread, writes BBC sports editor Dan Roan.
How to get into Athletics
How to get into athletics - one of the widest ranges of choice in sport, from jumps and throws to sprints or distance running.
What's on BBC Sport this week
This week's sport on the BBC includes the Test series between Bangladesh and England and the Rugby League Four Nations.
Athletics on BBC TV and online
Details of BBC Sport's athletics coverage on TV and online.