- John Clayton, NFL senior writer
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Sims agreed to a two-year deal but financial terms weren't available.
Though not promised a chance to start, Sims is expected to compete for playing time at right tackle.
Sims, 33, is entering his 10th season. He is a 6-foot-5, 305-pound blocker with left tackle experience.
John Clayton is a senior writer for ESPN.com.
The 49ers beat out the rival Rams for the services of former Raiders offensive lineman Barry Sims.