No. Remember that the Product Owner should never act in the Scrum Master role. These two roles have conflicting goals and should never be merged. Mixing them can have a very negative effect on the development process. Both roles require 100% involvement. Scrum Master, at times, needs to act as a mediator between the development team and PO when their goals start to diverge. In such a case, if the same person is acting as both, there will be a conflict of interest, which will affect the team’s progress.