"Nostradamus, he ain't.

There you have the essence of the Giants' response yesterday after brash Dolphins wide receiver Brandon Marshall used Twitter to guarantee something tomorrow against Big Blue that woeful Miami hasn't seen this season -- a victory.

If coach Tom Coughlin was worried his 4-2 team might overlook the 0-6 Dolphins coming off a bye and with a Murderers' Row schedule coming up, Marshall might have taken care of that with roughly 140 characters on his mobile phone yesterday morning.

"To: Media [--] When we win Sunday please don't say the Giants didn't take us serious," Marshall wrote.

It was the second brash prediction by Marshall in as many trips to New York.

He said before a 24-6 loss to the Jets at the Meadowlands last week he planned to get ejected in the second quarter on "Monday Night Football," but didn't follow up on it.

The Giants appeared to think Marshall will be about as accurate with his boast tomorrow as he was against the Jets. Defensive end Osi Umenyiora didn't even need 140 characters to scoff at Marshall in response.

"Riigghht," Umenyiora said when asked what he thought of the guarantee, quickly changing the subject.

A few minutes later, Umenyiora added (no pun intended): "We've got bigger fish to fry."

Marshall and the hapless Fish are indeed small fry compared with the next six opponents on the Giants' docket after this matinee at MetLife Stadium."