One of the biggest surprises of the 2017 NBA Draft didn't even happen during the event itself.

That honor goes to the Chicago Bulls, who sent star forward Jimmy Butler to the Minnesota Timberwolves in exchange for a package that included guard Zach LaVine and the No. 7 overall pick.

But, even though Butler is now a member of the Timberwolves, he took some time out of his schedule to say one last thank you to the members of the Chicago Bulls staff on Sunday night.

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According to Chicago Tribune writer K.C. Johnson, Butler took approximately 35 Bulls staffers out for a three-hour dinner as a farewell gesture before he heads off to join his new team:

"Butler wanted to 'say goodbye and thank you,' according to someone familiar with his plans," Johnson writes.

Though Butler didn't want to leave the Bulls this offseason, his gesture will go a long way toward ensuring he's remembered fondly in the Windy City.

Butler is excited for what this season holds in Minnesota, but said on a recent episode of the Bill Simmons Podcast that he feels a little let down by how the Bulls handled the trade (via the Chicago Sun-Times):

“I thought I was going to be there so I’m not going to say word for word what they said, but when I left there I did think I was going to be there,’’ Butler said. “But like I said, it’s a business and it is what it is.

“I said [to them in the meeting] we were OK. I said a lot of things about the future that if I could control it I would do this, but I can’t.

“I have nothing against anybody on that team, anybody in that organization, but they were so stuck on not building around me, but maybe building with me as they would say or going young. A rebuild. So it was one or the other. I just wanted to know. Was it clear when I left that meeting what we were going to do? No. Maybe I was told some things that I took as, ‘You might be here.’"

As the Bulls enter a rebuilding phase, Butler will instead join a young team on the rise, pairing up with Karl-Anthony Towns, Andrew Wiggins and Jeff Teague (as well as former coach Tom Thibodeau) in the Twin Cities.