Thunder reportedly to turn down Isaiah Hartenstein's option, re-sign him for three years, $75 million

This is a move that was expected well before their season ended, now it's about to become official.The Oklahoma City Thunder are declining Isaiah Hartenstein's $28.5 million team option for next season and signing him to a new three-year, $75 million contract, a story broken by Shams Charania of ESPN. He adds there is a "mutual option" — maybe both a player and a team option, maybe an agent's phrasing for a partial guarantee — on the final season.This is a win-win deal. Hartenstein g