Gardner played a three-inning simulated game on Sunday, but Girardi wasn't sure how many at-bats that would give his outfielder. Gardner has suffered setbacks twice during rehab games, both times after doctors assured Cashman his left fielder's right elbow strain was recovered.
"It's what he actually does when the game starts with the bat," Cashman said. "If he can get past that, then we should be fine."
Andy Pettitte was slated to undergo an X-ray on his fractured fibula before Sunday's game.