The San Francisco 49ers could have a serious problem on their hands entering 2019, and their victory in Week 2 of the NFL preseason over the Denver Broncos possibly revealed it.
If all goes well, the Niners will retain their same starting crop of offensive lineman from a year ago — center Weston Richburg, guards Laken Tomlinson and Mike Person along with tackles Joe Staley and Mike McGlinchey.
The problem, though, is things don’t always go well. And San Francisco is starting to experience that early this preseason.