The Sprint Backlog makes visible all the work that the Development Team identifies as necessary to meet the Sprint Goal. To ensure continuous improvement, it includes at least one high priority process improvement identified in the previous Retrospective meeting.
So based on the above, what I am understanding is that at least one process improvement item must be part of the Sprint Backlog. Correct?
Should this process improvement item be estimated just like the Product Backlog Items selected for the Sprint?