Three things you need to know from 49ers' 24-21 preseason win over Dallas

If the 49ers thought they could hide wide receiver Richie James in order to keep him on the practice squad, he did a good job of showing the rest of the league he can play at this level. James, a seventh-round draft pick from Middle Tennessee State, saw action on the third play of the game as he entered as the 49ers' No. 1 slot receiver. James was in that role with Trent Taylor being held out of the game as he rounds into shape after offseason surgery to remove bone spurs in his lower back.