Depth Chart
| Offense | |||
| Position | |||
| Left Tackle | Joe Staley | Shon Coleman | Matt Tobin |
| Left Guard | Laken Tomlinson | Mike Person | |
| Center | Weston Richburg | Erik Magnuson | |
| Right Guard | Joshua Garnett | Najee Toran | |
| Right Tackle | Mike McGlinchey | Garry Gilliam | |
| Wide Receiver | Pierre Garcon | Dante Pettis | Kendrick Bourne |
| Wide Receiver | Marquise Goodwin | Trent Taylor | Richie James Jr. |
| Running Back | Matt Breida | Alfred Morris | Raheem Mostert |
| Tight End | Garrett Celek | George Kittle | Cole Wick |
| Quarterback | Jimmy Garoppolo | C.J. Beathard | |
| Defense | |||
| Position | |||
| Left Defensive End | Solomon Thomas | Cassius Marsh | |
| Left Defensive Tackle | Earl Mitchell | D.J. Jones | |
| Right Defensive Tackle | DeForest Buckner | Sheldon Day | |
| Right Defensive End | Arik Armstead | Ronald Blair III | Jullian Taylor |
| Strong Linebacker | Mark Nzeocha | Terence Garvin | |
| Middle Linebacker | Fred Warner | ||
| Weak Linebacker | Malcolm Smith | Elijah Lee | |
| Left Cornerback | Richard Sherman | K'Waun Williams | Greg Mabin |
| Right Cornerback | Ahkello Witherspoon | Jimmie Ward | Tarvarius Moore |
| Strong Safety | Jaquiski Tartt | Antone Exum Jr. | |
| Free Safety | Adrian Colbert | D.J. Reed Jr. | |
| Special Teams | |||
| Position | |||
| Kicker | Robbie Gould | ||
| Kick-Offs | Robbie Gould | ||
| Punter | Bradley Pinion | ||
| Kick Returner | Dante Pettis | Raheem Mostert | |
| Punt Returner | Dante Pettis | Trent Taylor | Kendrick Bourne |
| Holder | Bradley Pinion | ||
| Special Teamer | Raheem Mostert | Garrett Celek | Dante Pettis |
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