"I've got to think of it as it's my start," Warren said.
Warren got the call up from Triple-A Scranton-Wilkes/Barre Thursday before the New York Yankees opened a four-game series against the Chicago White Sox, and he just wants to make the most of a chance that came sooner than expected and might not last too long.
Sabathia was put on the 15-day disabled list Wednesday with a strained groin and will likely return soon after the All-Star break. Rookie David Phelps could be recalled from the minors where he is working up to starter strength after recently pitching out of the New York bullpen.
"Anyone gets hurt you can't be too happy about it, but it's an opportunity for me," Warren said. "Try to make the most of it."
The 24-year-old Warren was 5-5 with a 3.86 ERA for Scranton this year. Sabathia is 9-3 with a 3.45 ERA for the team with the best record in the majors.
"I'm sure there are going to be a lot of butterflies tomorrow but hopefully he can get through that first inning and settle down," Girardi said.
Freddy Garcia is going to get shot at starting, too. Demoted from the bullpen at the end of April after a rocky start, Garcia will take Andy Pettitte's place in the rotation on Monday. Pettitte was placed on the 60-day DL Thursday, a day after breaking his left leg in an outing against Cleveland.
"My arm feels great, everything's working," Garcia said.
Yankees general manager Brian Cashman said Wednesday after the double whammy of injuries to a starting rotation that had been cruising along since Pettitte returned from retirement in mid-May, that he doesn't plan on going outside the organization for help to replace Pettitte.
Manager Joe Girardi has full confidence in Garcia, who hasn't started since April 28 when his ERA rose to 12.51. The two-time All-Star has worked the ERA back down to 6.39 over 10 appearances out of the pen.
"Freddy's done it for us before. And Freddy's an experienced guy. Freddy's not going to get caught up in the moment," Girardi said. "He did a great job for us last year and it looks like his stuff is back."
Garcia went 12-8 with a 3.62 ERA last year for New York.