The plaintiffs' lawyer, Brian Brook of Clinton, Brook & Peed, told ESPN that the email, included among roughly 200 pages of documents Manning produced as part of legal discovery, was key to specifically linking the quarterback to the lawsuit, which alleges an elaborate scheme to produce, pass off and sell memorabilia as game-used that was not.
The suit also alleges that the Giants were complicit by deleting the email from their accounts.
"The email, taken out of context, was shared with the media by an unscrupulous memorabilia dealer and his counsel who for years has been seeking to leverage a big payday," McCarter & English, the law firm representing the Giants in the case, said in a statement. "The email predates any litigation, and there was no legal obligation to store it on the Giants server. Eli Manning is well known for his integrity and this is just the latest misguided attempt to defame his character."
It is not likely that Manning, the Giants or their employees would be subject to criminal prosecution as the alleged actions in question have passed the federal five-year statute of limitations, ESPN reported.
The trial is scheduled to begin on Sept. 25.