Sean Strickland | Photo by Mike Roach/Zuffa LLC Sean Strickland and Dan Henderson aren’t on the same page when it comes to why their training partnership dissolved. In the past, Henderson has discussed how the future UFC champion’s trash talk at Team Quest in California rubbed his gym mates the wrong way. Henderson said Strickland was “too disrespectful” at times and it got to the point where the team parted ways with Strickland.