With less than a week to go before the trading deadline, the Rangers are heavily involved in talks with Atlanta on a deal that could send Mark Teixeira to the Braves, major league sources confirmed Wednesday. The deal, however, could also expand into a blockbuster. Both Atlanta and the Los Angeles Dodgers, sources said, would like to get Teixeira and a reliever from the Rangers. Eric Gagne and Ron Mahay are of interest to Atlanta; the Dodgers are more interested in Gagne and Joaquin Benoit. Further complicating the scenario is the Rangers' interest in keeping Gagne on a long-term deal. The club and Gagne remain conversant about such a possibility. Rangers general manager Jon Daniels said he would not discuss any trade scenarios.