Trade period went into overdrive on Friday, with centrepiece deals delivering Zak Butters to the Western Bulldogs and Ben King to Hawthorn. Five clubs, 20 draft picks and two other players were involved in a convoluted side deal that helped convince Port Adelaide they didn't need to match the Dogs' offer for Butters. Andrew Wu and Sam McClure explain how the side deals work and why footy fans should be cynical about them, but acknowledge that will matter little to the Bullldogs or Hawks, who are both now among the leading premiership fancies for 2027.