Track and road star Edward Zakayo has quit athletics amidst ongoing allegations, despite the World Anti-Doping Agency (Wada) giving Kenya a four-month compliance reprieve. His departure casts a shadow over Kenya's fight against doping.

• Edward Zakayo, a prominent Kenyan athlete, has left the sport due to unresolved allegations.
• The World Anti-Doping Agency (Wada) granted Kenya a four-month extension to comply with its anti-doping rules.
• The controversy surrounding Zakayo highlights the challenges faced by Kenya's anti-doping efforts, even as the country received a lifeline from Wada.