That news comes as a blow to Adams' likely playing time, with Kanter likely to get the bulk of the minutes alongside Ibaka due to Ibaka's outstanding defensive abilities, making him able to partially cover for Kanter's mistakes.
Adams is not close to being as skilled an offensive player as Kanter, but his screen-setting abilities and vastly superior defence means he should still be part of the Thunder's big man rotation as a key third cog, despite perhaps losing his starting berth.
Several writers noted what the news means for Adams on social media.
Kanter's re-signing puts the Thunder more than $13 million over the NBA's salary cap, with the franchise facing a potential $24 million dollar luxury tax payment at the end of next season, provided they don't make any cost-cutting measures.
However, if Kanter was to leave to Portland, the Thunder would have got nothing in return - resulting in the Thunder's squad being weakened just as they need to give Durant - an upcoming free agent - more reasons to stay put.
Meanwhile, Adams is set to meet with new Thunder coach Billy Donovan this week, where he will get clarification on his role this season, and to see whether he will cleared to play for the Tall Blacks against Australia in August.