"The Penguins replaced one injured winger with another during practice yesterday morning, but that swap may not hold up for an Atlantic Division showdown with the Flyers at Philadelphia tonight.

Center Evgeni Malkin, out the past four games with a sore left knee, skated with center Sidney Crosby and winger Pascal Dupuis at Southpointe Iceoplex. Left wing Chris Kunitz did not practice, and coach Dan Bylsma labeled him as "day to day" because of undisclosed injuries from a win at Buffalo on Saturday night.

"He's banged up," Bylsma said of Kunitz.

The Penguins would welcome the return of Malkin, who said he was "50-50" to play tonight against the Flyers as they try to extend a winning streak to 13 games and even the season series with their intrastate rival.

Malkin has scored 15 goals and recorded 41 points in 29 career games against the Flyers, though prior to this recent absence he had notched only five goals in 18 previous games overall.

"I (skated) pretty hard," he said of practice. "It's tough. I (don't) like watching games. I like to play, but I understand we need rest because my knee was sore before.""