Chelsea co-owner Todd Boehly has a significant stake in Vivid Seats as both a director and investor, and also holds a 13% stake in Chelsea.
Vivid Seats is not an authorized ticket seller according to the Premier League, and their website has listed Chelsea home games with ticket prices reaching up to £20,000.
The Chelsea Supporters' Trust has requested the Premier League to investigate this situation and look into any potential issues.
Premier League CEO Richard Masters has confirmed that talks with Chelsea are ongoing, as he discussed at a recent Football Supporters' Association event.