A French judge probes Nasser Al-Khelaifi over Qatar's bid to host the world athletics championships.
BBC Sport Wales meets Jeremiah Azu after he ran one of the world's best 100m times for a teenager in the middle of his school exams.
Major Michael Rotich, the former head of Kenya's track and field team, is banned from athletics for 10 years.
Caster Semenya will race in the 3,000m at the Diamond League Prefontaine Classic on 30 June without having to lower her testosterone levels.
Audio & Video
Jamaica blow their chance of women's 4x200m victory with two terrible handovers at the World Relay Championships.
Tom Fordyce explains how the Caster Semenya case started with a search for a simple truth - but has ended with loose threads and unanswered questions.
Eliud Kipchoge is the only person to come close to breaking the two-hour marathon. He tells BBC Sport that it's all in the power of the mind.
Pregnant athlete Jade Lally talks candidly about her fears, worries and doubts, including a loss of identity, body shape and financial pressures.
It has a secret entry process, climbs the equivalent of conquering Everest twice and clocks in at 100 miles long - the Barkley Marathons could be the world's toughest race.
Dr Sophie Mullins explains how developing her own phone app and playing 'dog bingo' helped her claim the 100k British ultra-running title.
'I'll use it to crack on' - the teenage 'freak of nature' back running five months after bizarre heart attack
From coronary care to competing with a heart monitor - talented young athlete Kieren Mooney has defied expectations after a 10k took a terrifying turn.
How to get into athletics
It has one of the widest ranges of choice in sport, from jumps and throws to sprints or distance and cross country running.
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What's on BBC Sport this week
This week's sport on the BBC includes the World Taekwondo Championships, Super League's Magic Weekend, Formula E and the Monaco Grand Prix.
Major events of 2019 & full sporting calendar
BBC Sport picks out the major sporting events of 2019, including the Cricket World Cup, Women's Football World Cup and the Rugby World Cup.