Mo Farah has said doping allegations concerning his coach Alberto Salazar is "ruining my reputation" - but he has no plans to end their relationship.
The double Olympic gold medallist told a press conference he has not seen "any clear evidence" that Salazar had been involved in doping.
"I'm a clean athlete, against drugs and anyone who isn't should be banned for life.
"I want to know the answers and the easiest thing to do would be to jump.
"But if you can't show me proof (Salazar), I'm out. I will be talking to people because it's my reputation", he added.
"The headline is 'Mo coach' and it's not fair on my family, kids. I want the memories, the 75,000 people cheering for me at the Olympics. They should know."
UK Athletics has 'absolutely no concerns' over the conduct and coaching methods of Alberto Salazar in relation to Mo FarahRead the full story ›
Jessica Ennis-Hill has withdrawn from Sunday's Birmingham Grand Prix as she bides her time before a possible World Championship bid later this year.
Ennis-Hill made a successful return to action at the Hypo Meeting in Gotzis last weekend in her first heptathlon since winning Olympic gold at London 2012.
The Sheffield star finished fourth and achieved the Olympic qualifying standard but admitted her exertions came at a price.
And after discussions with her coach Toni Minichiello the 29-year-old made the decision not to rush back into a top-level schedule.
Having competed in my first full heptathlon in three years, both Toni and I feel that my body held up well in Gotzis and we are delighted with how I did, but I feel competing seven days later is going to be too soon.
I have missed a volume of training over the past few months, since having my baby, due to problems with my Achilles and there is still a lot of work to do.
So we have made the decision for me to take the usual week off post a heptathlon to recover and then to get back into solid training."
There is enough evidence for investigation into Mo Farah's coach Alberto Salazar over drug allegations World Anti-Doping Agency boss says.Read the full story ›
Jessica Ennis-Hill has earned the right to defend her heptathlon title on her comeback to the sportRead the full story ›
Olympic champion Jessica Ennis-Hill has announced she will compete in her first heptathlon since London 2012 in Gotzis at the end of May.
The 29-year-old, who made her return to athletics in the last couple of weeks, has been struggling with a troublesome Achilles injury.
After competing in Loughborough at the weekend I felt pretty good the next day and my Achilles felt fine which is brilliant.
The results I have had at the competitions over the past few weeks are promising and we believe it is feasible for me to do a full heptathlon and achieve the level of points I need to qualify for Rio.
If I can achieve this early in the season it removes a real pressure, and all the indicators are looking positive, so I plan to go to Gotzis and give it my best shot.
Usain Bolt has swept all before him on the track - now he is out to conquer the big screenRead the full story ›
In the fifth episode of this new series, British sprinting legend Linford Christie talks to John Rawling about his journey from growing up in Jamaica to winning gold for Great Britain at the Olympic Games in 1992.
With contributions from fellow athletes Katharine Merry and Jonathan Edwards as well as journalists Jim Rosenthal and Neil Wilson and his coach Ron Roddan, Sports Life Stories tracks Linford’s career from the streets of West London to the Seoul Olympics and his reprieve for testing positive for a banned substance in 1988, to the high of winning gold in the 100 metres in Barcelona four years later.
I’m one of the few people who never talks about world records – never interested me at all. Records are made to be broken. Medals stay with you forever.
- Watch Linford's story on ITV4 and ITV Player at 10pm tonight
Katarina Johnson-Thompson has won gold in the pentathlon at the European Indoor Championships in Prague