Top seed Rafael Nadal will start as a strong favourite when he takes on South Africa's Kevin Anderson in Sunday's US Open final at 21:00 BST.
The Spaniard, bidding for a 16th Grand Slam title, will play in his 23rd major final, but Anderson is making his debut in a Slam final.
The pair, both 31, have known each other since junior days, and Nadal has won all four previous meetings.
"I'm happy for him because I know him since we were 12," said Nadal.
"It's great to see him in a final of one of the most important events of the year.