The Astros consider themselves to be buyers and not sellers and, therefore, are not shopping Miguel Tejada. The Astros have had "absolutely no (trade) dialogue about Miguel," one major-league source said, refuting an ESPN.com report that alleged the team was discussing a Tejada trade with the Red Sox. The team's only discussions about Tejada, the source says, involve his long-term position. Tejada, 34, eventually will need to move to third base, but the Astros have a strong third-base prospect at Class AA, Chris Johnson.