Brock Purdy doesn’t know whether he’ll play in preseason opener at Titans

As the first weekend of the preseason approaches, one of the common questions will relate to which key players will play in the games that don't count, and which ones won't.For 49ers quarterback Brock Purdy, who's in his first "normal" training camp as the full-time starter (last year, he was still coming back from elbow surgery), his reps for Saturday's visit to the Titans remain to be determined."We haven't talked about that, so just taking it one day at a time," Purdy told reporters on Sunday. "I think it all just depends on how practices go and my reps and how I'm feeling and stuff. But, I'm sure we'll make a decision here as the game comes closer."After Purdy, Josh Dobbs and Brandon Allen are battling for the backup job. Both of them undoubtedly will play extensively in Tennessee.Purdy was also asked at his press conference about his rash of interceptions; his prior comments came in a visit to KNBR radio."I take pride in protecting the ball for our offense and our team," Purdy said. "And so obviously, I'm mad when I'm not completing the ball to our guys and it's going to the defense. I'm hard on myself and the coaches are, too. We have a standard here. So it's not [that]...