Breida (shoulder) did conditioning drills in full uniform at Tuesday's practice, Cam Inman of The San Jose Mercury News reports.
The same goes for Jerick McKinnon (calf), the team's projected starter in the backfield. Despite missing most of the preseason, Breida is locked in as the No. 2 back and has potential to see consistent involvement in an up-tempo Kyle Shanahan offense that distributed 351 carries and 123 targets to tailbacks in a 10-loss campaign in 2017. A more competitive team would likely yield even more touches for the backs, and there hasn't been any indication of reserve runners Alfred Morris or Jeremy McNichols posing serious threats to McKinnon and Breida. On a more pessimistic note, San Francisco opens the regular season with a nightmare Week 1 matchup in Minnesota.