For the first time since he returned from the 15-day disabled list on June 2, Posada was behind the plate in consecutive games, having shown enough improvement coming back from a fractured right foot that the Yankees are confident he will have no further issues.
"It's just a matter of really going out there every day now," Posada said. "Every time I went out there, it felt better and better. Waking up in the morning and not feeling the pain was really encouraging."
The Yankees have spoken optimistically about having Posada catch four of the six games on this West Coast Interleague swing to Phoenix and Los Angeles, with Posada likely to yield the duties to Francisco Cervelli on Wednesday.
Third catcher Chad Moeller was designated for assignment on Monday, another indication of the team's confidence in Posada's health.
"I was hoping we could get [Posada] to back-to-back and play him two out of three in the series if we could," Yankees manager Joe Girardi said.
Posada said that he felt "real good" after catching eight innings in Monday's 10-4 loss to the D-backs, and he has taken certain precautions to avoid injury. He wears a pad when batting right-handed and has installed extra protection on his shin guards when catching.
With nine hits in his past 25 at-bats (.360) entering play on Tuesday, Posada said that he may be finally regaining some of the timing he lost prior to his stint on the DL, which saw the switch-hitter return to big league duty without a rehab assignment.
"I'm still working on things," Posada said. "It's a matter of keeping working. The game is hard enough as it is, but hitting-wise, I'm feeling a little better at the plate. Catching-wise, I'm comfortable."