49ers Kick Off the Preseason vs. Raiders; Six Takeaways from #SFvLV

Football is officially back! The San Francisco 49ers kicked off their preseason slate in Las Vegas against the Raiders on Sunday afternoon following two joint practices with the team earlier in the week. While most of the 49ers projected starters participated in workouts, a majority of the first-team offense and defense did not suit up for the preseason opener. Sunday's contest featured younger players, draft picks, newcomers to the team and undrafted additions.

"We got two good practices against them. I always like when we can do that, and we practiced really hard the second day with the ones so we don't have to dress any of them today," head coach Kyle Shanahan said.

"I didn't enjoy that game by any means today, but a lot of guys got a lot of valuable reps and that gives them a chance to make our team and gives us a chance to coach them up tomorrow."

Here are six takeaways from Sunday's matchup: