David Diehl says he’s a “mudder”

With rain in the forecast for Sunday at Candlestick Park, Giants left tackle David Diehl isn’t concerned. “My mudder was a mudder, so I think I’m going to be all right,” Diehl said Thursday, per Mike Garafolo of the Newark Star-Ledger. Diehl was making a reference to Papanick, a horse from Seinfeld about which Kramer…