The 49ers waived Webster on Tuesday, Matt Barrows of The Athletic reports.
Webster played with the Rams the prior two seasons before getting waived and joining the 49ers. The receiver was dealt plenty of competition from the start and ultimately was unable to make San Francisco's initial 53-man roster. The 25-year-old is considered to be a strong candidate to make the Niners' practice squad if he clears through waivers.