Pettitte threw 25 pitches from the bullpen yesterday, very good news:
Pettitte's next step hasn't been officially determined, as Torre and pitching coach Ron Guidry want to see how the lefty feels today. If there are no problems with his back, Pettitte will throw a full bullpen session tomorrow, then start on Friday or Saturday in a minor-league game, leaving the option open to back-date a trip to the disabled list should it be necessary.
"(Tomorrow) will be a better test," Torre said. "(Tomorrow), we can start figuring it out."