Tarell Brown shaken up at OTAs

The San Francisco 49ers weren't about making excuses following their 24-20 Week 1 loss to the Arizona Cardinals on Sunday. There could have been plenty — being rusty from no preseason, injuries, the lack of a normal offseason. All NFL teams across the league had to deal with at least two of those, though. The situation wasn't unique to the 49ers. You'll probably hear a lot more this week about the potential for a Super Bowl hangover. 49ers players aren't using that as an excuse either. While the goal is to get back to and win the big game this season, players have continually said they are taking things one week at a time and remain focused on each opponent ahead of them. "I mean, I hope we're not thinking about last year. We just played a