Walker could need surgery; 'Bob' likely to face Pens

   Flyers defenseman Matt Walker, acquired in the Simon Gagne trade in July, may need hip surgery, GM Paul Holmgren said after the team's practice in Voorhees on Friday.

  Walker was injured in a preseason fight against New Jersey. If he has the surgery, he will be sidelined "a couple months," Holmgren said.

    Holmgren said he will have "a clear direction" on whether Walker needs surgery after hearing from another specialist this weekend.

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   Several different left wingers _ including James van Riemsdyk and Andreas Nodl _ worked on a line with Mike Richards and Jeff Carter at Friday's practice. Don't be surprised if Dan Carcillo is taken off that line for Saturday's 6 p.m. game against visiting Pittsburgh.

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    Coach Peter Laviolette wouldn't announce his starting goalie for Saturday against Pittsburgh, but all indications point to Sergei "Bob" Bobrovsky, who defeated the Pens, 3-2, in the season opener.