He told ESPN his dad is 'off his head'

Conor McGregor has admitted his dad is 'off his head' after his bizarre rant about the DART.

In a video which went viral, Tony McGregor declared he was 'non too plussed' about the service, also expressing his displeasure with the amount of coins he was given back as change.

Here's a little reminder: 

Speaking about the video to The Ariel Helwani Show on ESPN, McGregor joked that his mother should have stepped in (go to 28:50)