Who would you fancy to win the rematch between David Hobby and Zack Arias at PopUP #GPPLondon - they will be hosting a special, FREE talk in London on September 28th and will have a rematch - will David have another smooth walkover victory or will Zack's incessant training pay off to seal an equalising victory?

You'll have to be there to see for yourself!

More details at popupgpp.com

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