49ers notes: Sherman works with Hopkins; McGlinchey's learning experience

Texans coach Bill O'Brien and Jimmy Garoppolo did not overlap while with the New England Patriots. Garoppolo threw for 334 yards in his second start with the 49ers in a 26-16 victory over the Texans. This week, the 49ers and Texans took part in two practices in advance of the team's preseason game Saturday night.