If you’ve tuned into NBC’s coverage of the Olympics, you likely noticed something is wrong with sportscaster Bob Costas’ eye — and now both of his eyes. The infection has spread.

Bob Costas began exhibiting the symptoms of pink eye Thursday. By Monday, it appeared as if the infection had spread to both eyes. (Image source: @SBNationGIF/Twitter)

Bob Costas began exhibiting the symptoms of pink eye Thursday. By Monday, it appeared as if the infection had spread to both eyes. (Image source: @SBNationGIF/Twitter)

An infection was evident as early as Thursday last week. Deadspin learned at the time through an NBC representative that he was unable to where contact lenses as a result and resorted to his round tortoise shell glasses.

“It just came on within the last 24 hours, the NBC doctors in Sochi are treating it, and they think it should resolve itself by the weekend. Until then, he has no choice but to go with the glasses on air,” the representative told Deadspin.

Costas during his broadcast Thursday also addressed the issue, saying it was pink eye:

“Bear with me for a moment as I spare my friends in the press office countless inquiries. I have no choice to go all ‘Peabody and Sherman’ on you for the next couple of nights since I woke up this morning with my left eye swollen shut and just about as red as the old Soviet flag.”

This picture for comparison purposes shows Costas' eyes clear and free from infection.  (AP/Evan Agostini, File)

This picture for comparison purposes shows Costas’ eyes clear and free from infection. (AP/Evan Agostini, File)

Conjunctivitis is highly contagious and can easily spread from one eye to the other, as it appeared to have done by Monday.

Many on Twitter took notice of Costas’ unfortunate situation.

I figured it out. Every time Russia doesn't sweep the podium, Putin pokes Bob Costas in the eye. #sochi2014 #olympics2014
Infection in NBCs Bob Costas Eye Spreads
@QueenofPT
TK Norton
The sunrise this morning was a glorious shade of Bob Costas. #blessed #morningglory #sochi #visine
Infection in NBCs Bob Costas Eye Spreads
@E4Hotel
@Echo4H
Someone should have told Bob Costas to NOT use the yellow hotel water to wash his face. Pink Eye -2, Costas - 0 #thatsnotwater #pinkeye
Infection in NBCs Bob Costas Eye Spreads
Bob Costas - Needs a pirates black eye patch over his left eye and a monocle for the right.
Infection in NBCs Bob Costas Eye Spreads
@dayo1946
Ken in Arizona
I am prepared to diagnose Bob Costas with Eye of Sauron http://t.co/h1YJktOf7b
Infection in NBCs Bob Costas Eye Spreads
@JasonBWhitman
Jason B. Whitman

In addition to receiving traditional medical attention, Costas could be self-medicating as well.

Don't judge Bob Costas and Mary Carillo when they need a little vodka at the end of the day. http://t.co/C9Xc2TAdAL http://t.co/9Jrh0RAMdI
Infection in NBCs Bob Costas Eye Spreads
@NBCSports
NBC Sports

In the clip Monday night, Costas admitted that he’s “not much of a vodka guy.”

“I’m looking at it this way though,” he continued. “My eyes can’t get any redder no matter what I do.”

“You know what, I’ll drink to that,” fellow NBC sportscaster Mary Carillo said.

Watch the clip:

As a result of the worsening infection, Costas announced Tuesday that he would turn the reigns over to Matt Lauer, at least for the night.

“Reluctantly, I was trying to throw a complete game here, but we’re going to have to go to the bullpen, and I don’t know if you’re aware of this tonight, but you’re Mariano Rivera, at least tonight,” Costas told Lauer with NBC’s Today Show over the phone. “Let’s hope it’s only tonight. I’m walking around, I might as well be playing ‘Marco Polo.’ I have no idea where I am.”