Glee Nationals are almost here Season 3, Episode 21: "Nationals” airs this Tuesday! But as the all-important competition draws near, one of New Directions’ most talented singers is suddenly stricken with a nasty bout of food poisoning. Will they be able to perform without her?

In this new Entertainment Weekly-exclusive clip, we find that Mercedes (Amber Riley) has taken ill. And she’s not looking well, at all. Mercedes won’t be able to perform with the Troubletones during Lady Gaga’s “Edge of Glory,” so Quinn (Dianna Agron) is appointed to dance in her place.

Uh, is this the same Quinn who could barely walk in last week’s episode? The New Ds chances of winning the competition aren’t exactly looking stellar right now.

Watch the full video here!

Source: Entertainment Weekly

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