49ers' Joshua Dobbs: Competing for backup role

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Dobbs will compete with Brandon Allen for the No. 2 quarterback role in San Francisco during the preseason, Matt Barrows of The Athletic reports.

The 49ers' star-studded roster has created no controversy over who will start come Week 1, leaving the battle for Brock Purdy's backup as the key competition to watch this preseason. Dobbs performed well in the team's first preseason contest, completing 70 percent of his passes for 146 yards and a rushing touchdown. The journeyman quarterback threw an interception, but it came on a failed Hail Mary attempt. The key takeaway from Saturday's exhibition was that Dobbs entered the contest in the second half after Allen, who completed 53.8 percent of his passes for 98 yards. The two veteran signal-callers will continue to prove their worth over the final two preseason tilts before head coach Kyle Shanahan decides who will enter the regular season as the No. 2 quarterback.