Well, I've got a few ideas. I might be able to come up with something better later. I have to violate the 2 and 2 rule, however, as I only have WTA ideas for the nonce.
Chanda is in a shoe store, trying on tennis shoes. She finds a pair she likes, and takes them up to the counter. She puls out her AmEx card to pay for them, and asks if they have any more pairs just like them. The clerk says yes, and asks how many pairs she wants? Cut to outside the store, as a cabbie is about to close a trunk full of shoeboxes. The cab drives off. Cut to the US Open. Chanda slams away a shot as the chair umpire calls, "Game, Rubin". Chanda goes to her chair for the changeover, sits down, and pulls a new pair of shoes out of her bag. She removes her old shoes, and tosses them to one side. Cut to a pile of several pairs of worn out tennis shoes. The AmEx slogan comes up as we hear the announcer say "...the match is now 3 hours long....".
Lisa Raymond is standing at a sidewalk kiosk that sells sunglasses. She tries on a pair. She looks in the mirror, and doesn't like them. She tries another pair. Then another. And another. Finally, she seems to have found a suitable pair. She takes a step or two away rom kiosk, out into the bright, midday sun. She mimics backpedalling under a lob and looks uptoward the sun as she swings her racquet for an imaginary smash. Then she says something on the order of "Perfect. I'll take them." She gets out her AmEx card to pay for the sunglasses, and walks off.
Alexandra Stevenson is second in line at a place called Sports Balls. As the previous customer leaves with their purchase, she steps up to the counter. "May I help you?" asks the clerk. Alex points at one of the lower shelves as says, "I'll take that one." The clerk turns around and bends down to get the item. Then he straightens and asks "This one?" as he turns around holding a basketball. Alex scrunches her face in a look of disapproval as she shakes her head "No". "The one next to it." The clerk brings up a can of tennis balls, which Alex then gets out an AmEx card to pay for.
(Not sure if she'd do this, because of the basketball/Dr.J connection. The joke being that she wants nothing to do with him.)
Conchita Martinez puts away a shot as the umpire calls "Game, set, and match, Martinez!" Conchita shakes hands with her opponent and heads off court. Cut to Conchita towel-drying her still-damp hair as she heads down a hallway toward the interview room. It's empty! No reporters in sight. Cut to a 24-hour printing service. Conchita enters with a folder and walks up to a copy machine. She places a piece of paper on a machine and begins making copies. Next, we see her paying for the copies with an AmEx card. Now, cut to a corner newstand, as a bundle is dropped off. It's a stack of papers. A close-up shows a picture of Conchita with the headline "Martinez wins US Open match". Then we hear the roar of an engine as we pan over to see a woman riding off on a motorcycle. (This makes fun of the lack of media attention Conchita usually receives, to the point where she had to print up her own news.)