The US Open, the final major tennis tournament of the year, finishes Day 1 action. Here's a look ahead to Day 2.

With $90 million in prize money at stake, the highest ever, the US Open marks the fourth and final Grand Slam event in tennis this year.

Novak Djokovic may still be going strong at 38, holding his own against the new generation led by Carlos Alcaraz and Jannik ...