The SubAir system under the grass at the stadium will manage the moisture of and aerate the grass, and it will help with heating. Bills QB Josh Allen recently said on The Pat McAfee Show that he is looking forward to playing on grass rather than the synthetic turf at the current Highmark Stadium. Also seen on video was seats being installed. The stadium will have a capacity of around 62,000, just shy of a 10,000 seat decrease from current Highmark Stadium. #buffalobills #highmarkstadium #buffalo