This is pretty random.
Conor McGregor tonight tweeted a photo of, what he calls, "an army of scientists" in his Dublin home putting him through a random drug test.
The Notorious is being tested by USADA, the United States Anti-Doping Authority, ahead of his bout against Rafael dos Anjos at UFC 197 in March.
The authority introduced a new programme last year which enables them to test an athlete without any prior warning.
Hence them showing up at McGregor's "gaf" on a Monday evening.
https://twitter.com/TheNotoriousMMA/status/691720443473039360
Unlike British Olympic champion Mo Farah, who allegedly didn't hear drug testers ring his door bell, McGregor may have even offered them a cup of tea.
The UFC Featherweight champion had tweeted this photo less than an hour before the drug testers arrived.
https://twitter.com/TheNotoriousMMA/status/691705696228892672
