Brandon Jacobs retweets threats

Brandon Jacobs took to Twitter to call out a fan who appeared to threaten him and his family. Mike DiNovo/USA TODAY Sports

New York Giants running back Brandon Jacobs, who was inactive for Monday night's victory over the Minnesota Vikings due to a hamstring injury, took to Twitter on Tuesday to call out a fan who appeared to threaten him and his family if he did not perform sufficiently in the game.

The fan wrote in a pair of tweets that he was ordering Jacobs to rush for 50 yards and two touchdowns Monday or "it's over for you and yo family" and included a racist epithet.

Jacobs retweeted the fan's tweet with his own "Look at what we deal with."

On Monday, he replied to an overly aggressive fantasy football player with an epithet of his own and a reminder that "this is my real life."

After rushing for 106 yards on 22 carries in the Giants' Week 6 loss in Chicago, Jacobs injured his hamstring and had to miss Monday night's game. He was replaced by Peyton Hillis and Michael Cox.

Twitter has become a forum in which fans cloaked in anonymity feel they can say anything they want to public figures.

Twitter offers users the ability to report abusive behavior to the service. There are also examples of police investigating users accused of making death threats or menacing statements on Twitter. Montreal police investigated death threats against MLS player Davy Arnaud in July.