Top-ranked Novak Djokovic will try to complete the first calendar-year men's singles Grand Slam since 1969 and become the all-time men's leader in Slam titles by capturing the US Open.

Five past champions won't be in the field when the showdown begins Monday on the New York hardcourts, with Roger Federer, Rafael Nadal, Stan Wawrinka, Juan Martin del Potro and 2020 winner Dominic Thiem absent due to injuries.