Carlos Beltran has acknowledged that a move to right field could prolong his career. The Mets have decided to table that topic for a week to 10 days, though, while Beltran undergoes a running program that will include circling the bases to see how his balky right knee responds. Beltran, who is entering the final season of a seven-year, $119 million contract, sounded like he was moving toward that conclusion as well. "If I feel good physically and my knee is responding well, and I'm moving well out there, then I would love to play center field," Beltran said. "But, at the same time, in my mind this is not my last year in the big leagues. I want to play for many more years. ... I understand if my knee is causing me problems and it's best for me in the long term of my career to move to right field, in which I have to run less than center field, then I have to make that move also. But, at the same time, I told Terry, I told Sandy that I would give them a better answer once I finish my running program."