Yesterday was a fine day to be a sports fan in the Big Apple. First, the Knicks dispatched the defending NBA champion Dallas Mavericks in a Madison Square Garden matinee. Linsanity reigned as Knicks point guard Jeremy Lin — Gotham's latest superhero — had 28 points and a career-high 14 assists. Then the Garden was cleared and iced for the Eastern Conference-leading Rangers, the lowly Blue Jackets and a capacity crowd of blue-shirted fans. The Rangers didn't exactly put on a command performance in the late show, but they did enough to defeat the Blue Jackets 3-2 in overtime. With goalie Steve Mason on the bench for an extra skater, Blue Jackets captain Rick Nash tied the score at 2 with a shot from the top of the circle that sizzled past the glove of goaltender Henrik Lundqvist with 1:33 left in regulation. Rangers center Derek Stepan scored the winner 22 seconds into overtime.