Yu Darvish won't return for the San Diego Padres this season.

Darvish, who hasn't pitched since Aug. 25, continued to experience irritation while playing catch from about 90 feet recently and decided to stop throwing in hopes of avoiding a stress fracture.

On Tuesday, a stress reaction on the tip of his right elbow prompted him to shut down his throwing program.

"Some players go out there and throw with a stress reaction," Darvish said through his interpreter. "I tried to throw, and it just didn't go the way that we wanted."

Darvish initially landed on the injured list with what was described as elbow inflammation.