Mevis will be the Rams' kicker Sunday at San Francisco, Gary Klein of the Los Angeles Times reports.
Mevis signed with the Rams' practice squad Wednesday to compete with struggling kicker Joshua Karty. Two days later, Rams coach Sean McVay named Mevis as the winner of the competition, at least for now. It's a job with potential for fantasy value, as the Rams have largely played well on both offense and defense this season.