Bob Costas’ eye infection that has been causing American Olympics viewers much discomfort while watching NBC’s coverage of the Games has finally sent the sportscaster back to the bench.

Costas will be sitting out NBC’s prime time and late-night coverage of the Winter Olympics in Sochi, Russia, while he recovers from the infection that was just in his left eye when the Olympics began, but has now spread to both eyes.

“Today” host Matt Lauer will be filling in for Costas, who has been told to rest (and give some relief to viewers who were complaining about Costas’ uncomfortable look on social media).

In a statement, Costas said: “As a practical matter, I simply couldn’t do my job because my eyes had become so blurry, watery and sensitive to light. I’m hopeful the symptoms will improve in the next couple of days and I can return to the broadcast. Also, the last thing I want is to go through the rest of my life owing Matt Lauer a bunch of favors.”

For his part, Lauer warned that he was happy to keep Costas’ seat warm, “although I might Purell it before I sit in it,” he added.

Costas sitting out the Olympics, even for a night, is a major break with Olympic coverage tradition. Costas has hosted all of NBC’s prime time Olympics coverage since 1988.