Pittsburgh Penguins goalie Marc-Andre Fleury is being tested for the mumps and will not play Thursday against the Colorado Avalanche.

Fleury and defensemen Robert Bortuzzo and Olli Maatta reported not feeling well and were being tested for the virus as a precaution.

"We will probably get those results back in a three-day period," Penguins general manager Jim Rutherford said, according to the Penguins website.

Penguins captain Sidney Crosby was diagnosed with the mumps on Sunday and on Tuesday teammate Beau Bennett was announced to have it.

It was determined Crosby was past the infectious stage of the disease Monday, and the Penguins said Crosby skated Wednesday on his own.

"He looked good on the ice," Penguins coach Mike Johnston said, according to the Penguins website. "It was a full skate. He worked on some extra conditioning drills."

Forward Chris Kunitz (fractured foot) practiced. He has missed seven games.

"He was back to take all drills except for contact drills, so that was the normal step," Johnston said. "So he was into really the first step of coming back into practice. Tomorrow he’ll do the game-day skate full out, then I don’t expect that he's going to be playing at all tomorrow. And Friday will give us another chance to get a good quality practice for him."

Goalie Thomas Greiss will start Thursday, the Pittsburgh Tribune-Review reported, and Greiss told the newspaper he was ready to play the four games in six nights the Penguins have coming up.

Goalie Jeff Zatkoff was recalled from Wilkes-Barre/Scranton of the American Hockey League to back up Greiss.

Maatta has missed the past four games with an upper-body injury. He also missed time earlier this season following surgery to remove a cancerous tumor on his thyroid gland.