https://cdnph.upi.com/ph/st/th/3941776779024/2026/upi/090fd53cdee472fb0c7840f2a5613477/v1.5/Down-2-0-to-Flyers-in-NHL-playoffs-Crosby-Penguins-remain-hopeful.jpg" /> Sidney Crosby remains hopeful his Pittsburgh Penguins can climb out of an 0-2 hole to beat the Philadelphia Flyers in a first-round playoff.