The Mariners on Tuesday signed free agent infielder Miguel Cairo to a one-year contract. Terms were not disclosed. "Miguel strengthens our bench by giving us another player, along with Willie Bloomquist, who can cover all four infield spots and, in a pinch, the corners of the outfield," Mariners' GM Bill Bavasi said. "This should allow (manager John McLaren) more flexibility to use Miguel or Willie earlier in a game, if he wants, and still be covered late."