Baghdatis sees me and smiles. I remember that he smiles when he’s happy or nervous, and you can never tell which. Again, it reminds me of someone, and I can’t think who.

I raise a hand. Good luck.

He raises a hand. We who are about to die …

I duck into the tunnel for one last word with Gil, who’s staked out a corner where he can be alone but still keep an eye on everything. He puts his arms around me, tells me he loves me, he’s proud of me. I find Stefanie and give her one last kiss. She’s bobbing, weaving, stomping her feet. She’d give anything to slip on a skirt, grab a racket, and join me out there.

My pugnacious bride. She tries a smile but it ends up a wince. I see in her face everything she wants to say but will not let herself say. I hear every word she refuses to utter: Enjoy, savor, take it all in, notice each fleeting detail, because this could be it, and even though you hate tennis, you might just miss it after tonight.

This is what she wants to say, but instead she kisses me and says what she always says before I go out there, the thing I’ve come to count on like air and sleep and Gil Water.

Go kick some butt.

AN OFFICIAL OF THE U.S. OPEN, wearing a suit and carrying a walkie-talkie as long as my forearm, approaches. He seems to be in charge of network coverage and on-court security. He seems to be in charge of everything, including arrivals and departures at LaGuardia.

Five minutes, he says.

I turn to someone and ask, What time is it?

Go time, they say.

No. I mean, what time? Is it seven thirty? Seven twenty? I don’t know, and it suddenly feels important. But there are no clocks.