"As long as they wake up and feel good, they'll be here and be ready to go," Cashman told Ian O'Connor of ESPNNewYork.com.
Teixeira has not played all season because of his torn sheath in his right wrist. Youkilis has been out more than a month because of a sprained back.
Lyle Overbay is expected to remain with the team, so David Adams could be returned to Triple-A Scranton. Joining him in Scranton may be Vidal Nuno. Though Nuno has pitched extremely well -- a 2.25 ERA in 20 innings -- the Yankees could keep him stretched out as a starter so that he'll be ready when the next opening occurs in the big leagues.