Jenkins, the 30th pick in the 2012 draft, didn't catch a pass as a rookie and was expected to step up this year. He plays at a position of need for the 49ers. Top receiver Michael Crabtree may miss the entire season with a torn Achilles. Mario Manningham and Kyle Williams are both recovering from torn ACLs.
That makes Jenkins' possible ouster even more surprising. He should have plenty of opportunities but so far hasn't made an impact. He fumbled after his only reception in the preseason opener and reportedly didn't catch a pass while getting fewer reps in practice Monday.
In fairness, it hasn't been all bad. There have been some highlight-reel catches in practice, including a 70-yard bomb from Colt McCoy in one session. Even after Jenkins' rough first preseason game, San Francisco offensive coordinator Greg Roman said he "does a lot of really good things."
But the 49ers will reportedly have a tough choice to make. The team added veteran Anquan Boldin in the offseason, and he will be the top option while Crabtree is out. But the depth chart lacks big names otherwise.signed oft-concussed Austin Collie