Beilein, who previously coached at MI, was named the Cavs head coach prior to the 2019-2020 season. The 67-year-old's current pact covers the next four seasons and includes a fifth-year team option.
Assistant J.B. Bickerstaff is expected to be promoted to interim head coach, as the Cavaliers return from the All-Star break for their first practice on Wednesday and their first game on Friday at Washington.
Cleveland Cavaliers head coach John Beilein talks with guard Collin Sexton (2) during the first half against the New Orleans Pelicans at Rocket Mortgage FieldHouse.
The Cavaliers are in the midst of a 14-40 season that sees them sitting last in the Eastern Conference.
In the second year of their rebuild following the departure of LeBron James, the Cavs were caught in between developing their younger players and the frustration of several veterans, along with Beilein being the focus of several locker room issues.
Beilein had to apologize to his team after a January team meeting in which he referred to his players as "no longer playing as a bunch of thugs". He befell the plight of some previous coaches who made the leap to the National Basketball Association: players quickly tuning him out with his penchant for screaming; and players believing that Beilein was treating them as young college athletes, not as professionals, league sources said.