"Ain't talking to nobody today," Jacobs said late in the afternoon after walking into the locker room following the team's meeting with DeMaurice Smith, executive director of the NFL Players Association.
The big, bruising running back, who has lost his starting job to Ahmad Bradshaw this season, was miffed after being stopped for no gain on a run in which he reversed his field instead of attacking the original hole. Jacobs never played again, and he later cursed at a reporter who asked him whether he believed he was benched because of that.
Jacobs apologized for both the incident and for cursing at the reporter.
Coughlin didn't see the original incident, but he said he spoke to Jacobs about it after the game. The coach said he would let the NFL handle any disciplinary matters relating to the incident.
"The whole incident upsets me," Coughlin said. "Remember, I didn't know about this until after the game. But why? It makes no sense. It is a senseless act. I don't know what you are going to accomplish by that. Even if it was an accident or frustration, you have to learn to deal with that. You have to have poise, some patience and some control."
Coughlin's greatest fear was that someone might have been hurt when the helmet entered the stands.
"Brandon understands the consequences of what could have happened there," Coughlin said.
Jacobs has been unhappy since Bradshaw, one of his best friends, became the No. 1 back this summer, a position Coughlin said was earned.
Jacobs complained that he was having a hard time staying positive as the Giants' No. 2 back after the preseason finale against the New England Patriots. He also bolted from an interview with an expletive a couple of days later when asked whether players had to drop their egos in playing in a system which uses two backs, like the Giants do.
"We know Brandon, and he wears his mouth on his sleeve a little bit," Manning said. "He's very emotional, and he's going to say some things. There are some people who do it just to do it, and he wants to win, be out there and help this team. That's just the way he is, and you have to love him for it and you need to understand where he's coming from and why it happens. It's because he's competitive, and he wants to do well."
Manning said Jacobs probably has to learn to deal with the media a little better.
"If you're a starter and then all of the sudden you're not a starter, you're going to get grilled on it a lot, and that can be frustrating," Manning said. "That can be a hard thing to handle. To talk about it is one thing, to have it happen and always discuss it is always going to make it tough."
Notes: S Michael Johnson, who blew the coverage on a touchdown pass to Dallas Clark, re-injured his back in the game. ... TE Kevin Boss, who sustained a concussion in the season opener, hopes to practice this week. Coughlin said Boss needs to pass his concussion test. ... C Shaun O'Hara (ankle) and CB Aaron Ross (foot) were sore after the game. ... Coughlin wouldn't say if he planed to make changes on the offensive line after its poor performance. The obvious move would be to put Shawn Andrews in the lineup either at guard or tackle.
Copyright 2010 by The Associated Press