Tom Thibodeau said he's "very optimistic" the Minnesota Timberwolves will sign Karl-Anthony Towns to an extension before the start of the regular season.

Towns could sign an extension worth as much as $187 million.

If Towns doesn't sign an extension, he will become a restricted free agent in 2019.

“We know how important Karl is to the future of the organization,” Thibodeau said.

The relationship between Towns and Thibodeau has been a point of discussion this offseason.