Rare virus, spread to knee, to keep Pronger out for one month

The Philadelphia Flyers are apparently on the forefront of a new medical breakthrough. On Monday afternoon, general manager Paul Holmgren revealed that defenseman and captain Chris Pronger, who has missed the last four games with a virus, apparently will be out of the lineup for another month following surgery on his left knee. “Chris will have surgery on his left knee tomorrow afternoon. The surgery will be performed by Dr. Peter DeLuca. The procedure will clean out some loose particles that have given Chris some problems over the last month or so,” Holmgren said. “We were hopeful that the time missed with …