It's hard to deny Aldon Smith's talent -- the 2011 first-round pick has 42 sacks in 43 games -- but the 49ers have grown weary of the ever-growing list of off-field incidents. The latest came last Sunday when the linebacker was arrested and charged with a false report of a bomb threat. He also has two previous DUI arrests, the last coming in September.

Through it all, the 49ers have supported Smith -- but that could be changing.

Several sources involved with the team's decision making tell MercuryNews.com's Tim Kawakami that not only has Smith lost the benefit of the doubt, he likely won't play for the 49ers in 2014.

There's still a lot to sort through: any criminal charges that come from the latest arrest, as well as the NFL sanctions that will almost certainly follow. But the bottom line seems to be that Smith's inability to stay out of trouble might have finally caught up with him.

Kawakami writes that this doesn't mean the 49ers will release Smith anytime soon, "But there is a weariness and frustration over Smith's behavior that I've never heard involving any recent 49ers player. Until this week.