Billy Wagner said last week that he intended to test the free-agent market. The closer's agent, Bean Stringfellow, officially communicated those intentions to the Phillies yesterday. Stringfellow told the Phillies that while Wagner and his family liked their latest offer, they want to see what else is out there. It should bring some attention. The Boston Red Sox, New York Mets and Atlanta Braves could take a look at Wagner, the 34-year-old lefthander who went 4-3 with a 1.51 ERA and 38 saves this season. The Phillies' latest offer is believed to be for two guaranteed years, with an option for a third year, worth $27 million overall. Wagner also wants a no-trade clause, but it is believed that the Phillies have not offered one for the length of the contract. "We're not disappointed," Ruben Amaro Jr., the Phillies' assistant general manager, said yesterday afternoon. "It's part of the process. We understand that. Billy has every right to declare free agency and do what he wants to do. He still remains our top priority. We still think we have a very good chance of bringing him back in red pinstripes."