At times it’s been like watching London 2012 all over again. Well almost.

British Athletics claim the large queues at the Sainsbury’s Anniversary Games ticket office last night, which led to a number of frustrated fans heading home out of pocket, was caused by “a substantial increase in walk-up purchasers”.

Usain Bolt hit back at his doubters on a wet evening here at the Sainsbury’s Anniversary Games, winning the men’s 100 metres final with a season-best equalling time of 9.87sec. 

Working through the four confirmed positive drug tests at the Pan American Games in Toronto last week, the ugly side of the Tour de France was also rearing its head as the now traditional doping controversy begun to gather pace. 

Genzebe Dibaba tonight broke Qu Yunxia’s 22-year-old women’s world 1500 metres  record at the International Association of Athletics Federations’ (IAAF) Diamond League meeting in Monaco with a time of 3min 50.07sec.

Mo Farah returned to competition here for the first time since doping allegations emerged about his coach Alberto Salazar, dedicating a thrilling 5,000 metres  win in an outstanding International Association of Athletics Federations’ (IAAF) Diamond League meeting to the man he insists will continue to guide his career.

UK Athletics has welcomed the decision of UK Anti-Doping (UKAD) to carry out an investigation into allegations about Alberto Salazar’s operations at the Nike Oregon Project made on June 3 in the BBC Panorama programme Catch Me If You Can.

I have absolutely no idea if Mo Farah is, or ever has been, on performance-enhancing drugs or whether his American coach Alberto Salazar has been systematically feeding them to his athletes.

Mo Farah has insisted he will continue to work with Alberto Salazar after accepting the response his coach has made to allegations of doping offences raised by a BBC Panorama documentary earlier this month.

Alberto Salazar has responded to allegations made earlier this month in a BBC Panorama documentary that he violated anti-doping rules in his coaching of several athletes within the Nike Oregon Project, most notably Galen Rupp, the Olympic 10,000 metres silver medallist, has issued his long-awaited riposte in the form of a 12,000 word open letter.

Mo Farah, whose coach Alberto Salazar was alleged to have engaged in past doping violations involving other athletes in his group by a BBC Panorama programme aired earlier this month, has posted a statement on Facebook insisting he has never taken performance-enhancing drugs, and adding that the last weeks have been “the toughest of my life".

Media pressure on Mo Farah, whose coach Alberto Salazar was alleged to have engaged in doping violations by a BBC Panorama programme aired earlier this month, has continued to grow with a claim by the Daily Mail that he missed two random drug tests before he won his Olympic 5000/10,000 metres double at the London 2012 Games.

Usain Bolt, running at the Icahn Stadium at Randall’s Island where he set his first 100 metres world record in 2008, produced what he described as "one of the worst races I've run,” as he earned a narrow victory in the 200m at the International Association of Athletic Federations’ Diamond League meeting in New York City.

Two days after UK Athletics issued a statement saying it had “absolutely no concerns” about Britain’s world and Olympic 5000 and 10,000 metres champion Mo Farah continuing to work with coach Alberto Salazar, who is the subject of doping allegations, the UK Athletics chairman Ed Warner has suggested it might be best if the relationship ended, at least for the moment.

A stupendous javelin throw of 91.39 metres from Kenya’s Julius Yego and a sub-10 second 100 metres from Britain’s Adam Gemili - albeit at the price of an injured hamstring - offered spectators at the International Association of Athletics Federations’ (IAAF) Diamond League meeting in Birmingham value for money, despite the morning’s withdrawal of “an emotionally and physically drained” Mo Farah.