Phillip O'Callaghan is a tennis coach from Cork in Ireland. As he says in this podcast, people from Cork are very humble (even though Cork might well be the most represented city on my podcast!) so he describes himself on his bio on his website www.mrtenniscoach.com as being..."Really passionate about learning how to be a better coach and spend a lot of my free time learning about coaching. I'll be sharing lots of content here that will also help you improve or learn more about coaching".

This doesn't really explain properly what Phillip does...he actually takes really dense academic articles or book chapters and creates simplified blog posts and twitter threads that the rest of us could understand...he is a great source of knowledge.

Follow him on Twitter at @Mr_tennis_coach https://twitter.com/Mr_Tennis_Coach