The San Francisco 49ers wrapped up their fourth day of practice, and the players will have Monday off. I've posted links to all the available practice reports, and will add more as they are published.

Free safety

Several players reportedly stood out today, with Eric Reid getting a lot of praise, in part because he grabbed his first interception of training camp. Reid teamed with Craig Dahl on the second-team defense, with C.J. Spillman rotating into the starting free safety role for the day. There has been plenty of discussion here about Eric Reid potentially getting some work at strong safety. He has gotten work at both safety positions since being drafted, but I have to think that this year will see him starting at free safety. The 49ers could very well decide to switch him to strong safety when Donte Whitner departs, but for now, I expect free safety work as the season approaches.

Wide Receiver

Marlon Moore reportedly had another solid day. He only had two receptions on two targets (per Barrows), but it sounds like he is making some flashy catches. Moore has received praise from Coach Harbaugh, so it will be interesting to see how he pans out in preseason action. He could be in line for more snaps, depending on Ricardo Lockette's hip. Lockette injured it during practice, although he did come back later to finish up.

Speaking of wide receivers, if you want to get a review of A.J. Jenkins work every day, Grant Cohn has added a section called "The Jenkins" to his daily recap that features "The Good" and "The-Not-So-Good". It seems a little trolly in nature given Cohn's past criticisms of Jenkins, but he is apparently providing a rundown of all his plays, so take it how you want. I am curious to see Jenkins in game action. More importantly, I want to see him going up against first- and second-string defensive players in preseason action.

Nose Tackle

It sounds like Ian Williams is continuing to perform well. At this rate, he likely will get first-team nose tackle snaps in the preseason opener. Beyond that it's hard to tell, but it could turn into a bit of an upset for Glenn Dorsey to claim the starting job. When the 49ers signed Williams, there was talk that he was among the best undrafted free agents on the market. He and Demarcus Dobbs both claimed roster spots as rookies. While Dobbs has gotten a lot of special teams work, Williams has mostly been inactive over the last two years. It seems like that might be changing quite significantly this fall.

Injuries

I posted about injuries a little earlier today, but in case you missed that post, Darius Fleming went down with what is being described as a bad-looking injury to the knee he had surgically repaired after last year's ACL tear. Ricardo Lockette suffered a hip injury but completed practice. Marlon Moore reportedly came up lame on a play, but also finished practice. Kyle Williams sat out practice after tweaking his hamstring yesterday. The 49ers have a day off on Monday, so it gives him two days to get his hamstring 100%.