The 1973 National League Championship Series was played between the New York Mets and the Cincinnati Reds from October 6 to October 10. New York won the series three games to two and advanced to the World Series, where they lost to the Oakland Athletics in what was the second of three straight world championships for Oakland. The 1973 NLCS was marked by a fight that broke out in the fifth inning of the third game, beginning with a tussle between Cincinnati's Pete Rose and New York's Bud Harrelson at second base.