A report that Manny Ramirez is looking to change agents to facilitate a trade after the season is certain to cause a stir on Yawkey Way. Greg Genske, the Southern California-based attorney who has been part of the agency representing Ramirez for more than five years, would not address a report by Ken Rosenthal of Foxsports.com that said Ramirez has placed feelers to other agents, including the high-powered Scott Boras and another agency, SFX. ''Right now Manny is strictly focused on the playoffs and the Boston Red Sox in the World Series," Genske said by phone last night. Ramirez attended yesterday's mandatory session at Fenway Park, but the Fox report did not surface until later in the day. An industry source said yesterday Ramirez spoke to Genske and vehemently denied he was thinking of firing him, but it would hardly be unprecedented for a star player to change representation. Ivan Rodriguez fired agent Jeff Moorad and signed with Boras before signing a four-year, $40 million contract with Detroit as a free agent. There is also little doubt the Red Sox intend to explore a trade of Ramirez, just as they have in each of the last two offseasons and again at the July trading deadline. With just three years left on Ramirez's eight-year, $160 million deal, the Sox may find willing trade partners, a list expected to include the New York Mets, who engaged in Ramirez trade talks last winter and in July, and the Toronto Blue Jays, a team that has money to spend this winter. Ramirez would have the authority to veto any trade as a 10-5 player, which means he has been in the major leagues for 10 years and with the same team for five. Last Monday, in a telephone interview with the Globe, Genske praised Red Sox general manager Theo Epstein for the role he played in diffusing the friction between manager Terry Francona and Ramirez after the manager acknowledged to reporters during a series against Tampa Bay that Ramirez had insisted on taking a promised day off, even after Trot Nixon was injured the night before, leaving the team shorthanded in the outfield. Ramirez was confronted in the clubhouse by Curt Schilling, before David Ortiz intervened, and in a subsequent radio appearance, Sox CEO Larry Lucchino said Ramirez had asked to be traded. The Sox were engaged in trade talks with the Mets for Ramirez, which included a third team, the Devil Rays. But when the Sox were not satisfied with the players they would receive in return, no agreement was struck. Before the trading deadline, July 31, the team said it had been mutually agreed that Ramirez would not play for a couple of days, then Ramirez, with teammate Kevin Millar in tow, interrupted Francona's media session to say he was happy to remain in Boston this year. Minutes after the trading deadline, and to a thunderous ovation, Ramirez appeared as a pinch hitter and delivered a game-winning hit. ''This is the place to be," he said. ''Man, this is Manny being Manny. Forget about a trade." But in his time in Boston, Ramirez has made it an annual event to express unhappiness being here. ''It's been every year," Francona said that day. ''Have a couple fiascos and then drive in 140. I hope it continues."