Penalties continued to haunt the Penguins in the third period as Patrick McGrath went off for elbowing followed by a Danny Kristo tripping call .
The penalty kill was up to the task , preventing the Senators from mounting a comeback .
Penalties continued to haunt the Penguins in the third period as Patrick McGrath went off for elbowing followed by a Danny Kristo tripping call , but the penalty kill was up to the task , preventing the Senators from mounting a comeback .