The Boston Celtics signed Jaylen Brown to a four-year, $115 million extension shortly before the deadline.

The Celtics famously hadn't signed a player to a rookie scale extension since 2009 with Rajon Rondo.

"From what I was hearing, Boston improved its offer significantly at the end of the negotiations," said Brian Windhorst on the Zach Lowe podcast. "One of the reasons why I think they did that was because they realized they didn't want to get into.. they saw where things were going. If Buddy Hield gets this, than our guys (get this)."