The biggest buy-in poker tournament in history took place this week as 48 players paid $1 million each to play in The Big One for One Drop, a tournament organised to raise money for Guy Laliberté’s One Drop Foundation. Watch as some of the world’s best-known poker pros including Phil Hellmuth, Phil Ivey, Antonio Esfandiari, Gus Hansen and Tom Dwan battle it out for the largest prize in poker history – a whopping $18.3 million.