I've read quite a few tweets about it, but this sums up the issue from a reporter at the arena.
This is too bad. How hard can it be for an established arena to control the temperature? I'm kind of glad now that I didn't make the trip, I was very close to taking the day off and going.TOO hot at Eagles concert tonight? Concertgoers say unbearable. 90-ish degrees inside. People getting sick. Leaving early. #at11 @WBTV_News