Brad Richards assisted on two goals, both scored in the first period, but he and the New York Rangers wound up on the losing end of a 3-2 overtime game in Ottawa Wednesday night. The Sens tied the teams' opening-round playoff series at 2-2, with Game 5 set for Saturday. Martin Gaborik also had two assists for the Rangers. The assists by Gaborik and Richards set up goals by Anton Stralman and Ryan Callahan.