While trade talks involving Manny Ram?rez may have stalled yesterday -- a source with direct knowledge of the negotiations indicated that the Mets are not in the bidding and the Angels had not been heard from yesterday -- the Red Sox were moving aggressively to trade shortstop Edgar Renteria. Renteria, Boston's prize free agent acquisition last winter, has fallen out of favor after a 30-error season. He could be headed to the Braves as part of a three-way deal with the Devil Rays in which the Sox would receive Devil Rays shortstop Julio Lugo while Tampa Bay would get prospects from Atlanta, presumably highly regarded third baseman Andy Marte and another player. Two sources with direct knowledge of negotiations last night confirmed that such a deal is being discussed. What's holding things up is money. The Braves want the Sox to eat a portion of the $30 million remaining on Renteria's salary. The Braves lost their shortstop, free agent Rafael Furcal, who agreed to a three-year, $39 million deal with the Dodgers last weekend, and have always held Renteria in high regard. The Sox would play Lugo, who hit .295, knocked in 57 runs, and made 24 errors last season, at shortstop or second base, depending on two other deals they had on the table. They asked the Angels about Orlando Cabrera, the shortstop for Boston's 2004 World Series champions, and also are trying to persuade the Padres to take catcher Doug Mirabelli straight up for second baseman Mark Loretta.