49ers' Brandon Jacobs says he's 'not good enough' to play, deletes Tweet

San Francisco 49ers running back Brandon Jacobs tweeted that "we are not good enough" when asked why he, LaMichael James and A.J. Jenkins aren't suiting up for games, according to Matt Maiocco of CSN Bay Area.

Jacobs eventually deleted his Twitter response to the question but as many people have learned the hard way, nothing dies in the age of the internet.

Jacobs has only dressed for one game this season and has yet to receive a carry. Jacobs was expected to be the short yardage back for San Francisco this season but fell behind Frank Gore and Kendall Hunter after suffering a knee injury early on. Since Jacobs brings little to the table when it comes to special teams, the 49ers have been using Anthony Dixon as the third running back, as he's a dual contributor.

All of Jacobs' $1.575 million salary for this year is guaranteed as a vested veteran, so it doesn't make much sense for the 49ers to cut him even though his services haven't been required this season. The bruising ball carrier makes for excellent insurance behind Gore or Hunter in case one gets hurt in San Francisco's run-oriented scheme.

Jacobs had 571 yards and seven touchdowns in the 14 games he played in last year with the New York Giants.