1:32pm: Heyman now has the Yanks in "deep discussions" with Tex; he says they've stepped up their efforts in recent hours.
12:08pm: Nick Cafardo of the Boston Globe has the Nationals at nine years, $180MM and the Red Sox at eight years and around $170MM.
10:55am: Chico Harlan of the Washington Post talked to a Nationals spokesman who is not aware of any plans for an announcement today regarding Teixeira. WEEI's Alex Speier notes that it is not a lock that Teixeira signs by Christmas.
10:28am: Buster Olney and Peter Gammons say Teixeira's decision is "seemingly imminent." The journalists say the Orioles' negotiations for Tex "appear dormant." They suggest the Yankees are lurking in case Boras offers Teixeira to them at a discount (or perhaps just to drive up the price for Boston).
10:20am: According to Thom Loverro of the Washington Times, "there will be an announcement today regarding the future of free agent first baseman Mark Teixeira." Loverro says there are strong indications the Red Sox will be the victor, though it's unclear whether those indications are based on inside information.