The Dynamo are in advanced trade talks with Toronto FC to acquire the Major League Soccer allocation rights to sign veteran U.S. national team left back DaMarcus Beasley, a person with direct knowledge of those talks said. Beasley, who made history this summer in Brazil by becoming the first American to participate in four World Cups, is a free agent after spending the last three years with Mexican club Puebla. Per MLS rules, the former Chicago Fire player is subject to the MLS allocation process.