Some of the best tight ends in the NFL are currently training together in Nashville this week for “Tight End University,” which is an event that is being led by active tight end George Kittle and retired tight end, Greg Olsen.

While many of the league’s tight ends are in Nashville for the event, Tim Tebow was not invited to “Tight End University.”

The way Kittle tells it, there wasn’t room at the event for a player that’s just now transitioning to the position. Kittle and Olsen were recently on the “Pardon My Take” podcast to explain.

“So, nothing against Tim Tebow, but I found it hard to invite — I wish nothing but the best for Tim Tebow, and I hope he has a fantastic season playing tight end — but it’s hard for me not to invite a backup tight end on, let’s say the New York Giants, as opposed to inviting a guy who just started playing the tight end position because we do have limited spots,” Kittle said on the show. “I wish I could make it so every NFL tight end can come, (so) it’s accessible to everybody. But what we tried to do this year, we wanted to pay for everything for all the tight ends that come to kind of make it a special event for all tight ends.”

According to Kittle, the event had to secure an entire hotel to hold all the players that were invited.

“We booked up an entire hotel,” Kittle added. “They’re completely out of rooms. We have every room taken. We blocked off a certain amount of rooms, so we’re completely out of rooms. We thought we were going to get like 20 guys, and the next thing I know, we have 47 confirmed as of last week, and I think we just got past 50. Just, wow, that’s a lot of guys.”

Maybe Tebow’s luck will be better this time next year.