NEW YORK — Rick Nash came up big when the New York Rangers needed him the most.Nash had a goal and assist and also scored in the shootout to lead the New York Rangers to a 3-2 win over the Buffalo Sabres on Sunday night.Ryan Callahan also scored for New York in the shootout. Derek Stepan added a goal, and Henrik Lundqvist made 28 saves. New York has won two in a row."It's a big win," Nash said. "I'm proud of the guys. They stuck with it and we got a big win."