With today’s non-waiver trading deadline set for 4 PM EST, it’s likely that the Yankees still have a major trade up their sleeves. Unfortunately, there’s a rumor going round about a deal which has me not just cringing, but angry. The Yanks are believed to be interested in Cincinnati Reds third baseman Aaron Boone, whose father, Bob, was fired as manager of the Reds earlier this week. Boone, as one might expect, has asked to be traded and the Yanks, along with the Dodgers, are in the mix, according to ESPN:

New York’s offer is minor league left-hander Brandon Claussen and more than $3M for Boone and Gabe White. The Dodgers are offering cash and minor league prospects.

The Yanks have long coveted White, a lefty reliever with a 3.93 ERA who’s currently on the DL with a groin pull. But all season long they’ve rebuffed any attempts to include Claussen, their top pitching prospect, in any deal. Recall that Claussen made his major-league debut on June 28 against the Mets and pitched brilliantly, then returned to the minors. He’s clearly ready for the bigs, and a sensible Yankees organization should have him pencilled in for next year’s rotation. To include him in a trade for a big bat (Brian Giles, Vladimir Guerrero, Juan Gonzalez) would be understandable, though disheartening. But to give up Claussen for a middle reliever and a servicable but hardly stellar third baseman (Boone’s hitting .273/.339/.469 with 18 HR) would be a crime. The upper Yankee farm system is nearly bone-dry as it is, and trading Claussen would leave Erick Almonte and Juan Rivera as the Yanks top prospects, a chilling thought.

Boone is 30 years old, currently making $3.7 million and not eligible for free-agency until after next season. Baseball Prospectus’ Equivalent Runs stats show Boone as the 9th most productive 3B, 19.3 runs above a replacement-level 3B and about 8 runs better than Robin Ventura. With Ventura (.213/.305/.287 in June and July) clearly showing signs of decline, an upgrade at the hot corner is on the Yankee wish list, but it’s a secondary concern given the patchwork nature of their current rightfield setup.

The Seattle Post-Intelligencer is reporting this deal as an inevitability:

So it was for the Mariners, who went from back in the pack to perhaps co-favorites with the Los Angeles Dodgers in the quest to land Cincinnati third baseman Aaron Boone, the brother of Mariners second baseman Bret Boone.

Then the Yankees stepped in and apparently stole the player the Mariners most wanted. In place was a deal that would send left-handed starter Brandon Claussen, a top Yankees prospect, to the Reds along with $3 million in exchange for Boone and left-hander Gabe White.

The finalized deal wasn’t announced, but it appears the Mariners will have to look elsewhere for help.

What’s next, trading Nick Johnson to the Tigers for the undead Bobby Higginson to plug that right-field hole? If you’re a Yankee fan, cross your fingers that reports of this trade are greatly exaggerated.

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Update: chairs thrown. More to come shortly…