(Photo by Jim McIsaac/Getty Images)

The Grand Rapids Griffins beat the Chicago Wolves 6-3 in game 4 of their best of seven. Grand Rapids has 3-1 lead in the Central Division Finals.

Mitch Callahan had a hat trick and the Griffins scored three goals in the second period.  Callahan got an empty net goal with 49 seconds left after goals in the first and second periods - his first goals of the postseason.

Martin Frk, Matt Lorito and Kyle Criscuolo each had a goal and Eric Tangradi had three assists.  The Griffins can wrap up the series with a win Saturday in Chicago.