NEW YORK -- Left winger Gary Roberts will not dress for Game 3 of the Penguins' second-round playoff series against the New York Rangers at Madison Square Garden Tuesday.

Roberts has missed the past four games because of a sore groin, but coach Michel Therrien said this afternoon that Roberts isn't playing because Therrien doesn't want to alter a winning lineup.

Roberts participated in the Penguins' game-day skate with no apprent difficulty.