| Suit's top or bottom | 24 |
| Suit's bottom or top | 24 |
| Suit's bottom | 17 |
| Suit top? | 9 |
| Stunner from Sampras | 20 |
| Stud player's asset | 23 |
| Strong straight part? | 21 |
| Strong heart | 12 |
| Strikeout star | 14 |
| Stretchy bandage brand | 22 |
| Stich specialty | 15 |
| Star hurler | 11 |
| Standout pitcher | 16 |
| Standout pilot | 14 |
| Spadille, sometimes | 19 |
| Spaceman of Kiss | 16 |
| Something up your sleeve, perhaps | 33 |
| Something up the sleeve? | 24 |
| Soft serve it's not | 23 |
| Snoopy, in his WWI fantasies | 28 |
| Smash from Federer, maybe | 25 |
| Sleuth Ventura | 14 |
| Sleeve lining, at times | 23 |
| Sleeve dweller? | 15 |
| Skilled fighter pilot | 21 |
| Skilled combat pilot | 20 |
| Sizzling serve | 14 |
| Single, slangily | 16 |
| Single point | 12 |
| Shot you'd never take a mulligan on | 39 |
| Shot that doesn't require putting? | 38 |
| Serving success | 15 |
| Service point | 13 |
| Service found in the four longest Across answers herein | 55 |
| Service _____ | 13 |
| Server's wish | 17 |
| Server's point | 18 |
| Serve well done | 15 |
| Serve that can't be returned | 32 |
| Serve like Sampras, e.g. | 24 |
| Serve brilliantly | 17 |
| Serena's specialty | 22 |
| Serena's serve, sometimes | 29 |
| Seasoned pro | 12 |
| Seasoned aviator, e.g. | 22 |
| Score well on | 13 |
| Score well | 10 |
| Score very high on | 18 |
| Score on a serve | 16 |
| Score 100 percent on | 20 |
| Score 100 percent | 17 |
| Sampras service sometimes | 26 |
| Sampras serve, often | 20 |
| Sampras serve | 13 |
| Sampras might serve it up | 25 |
| Royal-flush component | 21 |
| Royal-flush card | 16 |
| Royal flush need | 16 |
| Royal flush ingredient | 22 |
| Roy Halladay or the Red Baron | 29 |
| Roscoe Tanner specialty | 23 |
| Reynolds film ''Stroker ___'' | 45 |
| Reliable pro | 12 |
| Really do well on | 17 |
| Rare occurrence at the U.S. Open on Father's Day that's a common occurrence at the U.S. Open on Labor Day | 113 |
| Rare golf shot | 14 |
| Quite a shot | 12 |
| Quick-trick card | 16 |
| Quick tennis point | 18 |
| Quick court point | 17 |
| Queen beater | 12 |
| Put one by | 10 |
| Prince of a guy | 15 |
| Primo pitcher | 13 |
| Powerful Williams wallop | 24 |
| Powerful serve | 14 |
| Powerful heart | 14 |
| Power serve, perhaps | 20 |
| Poker plus, usually | 19 |
| Poker player's 'bullet' | 35 |
| Point winner for Sampras | 24 |
| Player who might start a key game | 33 |
| Plane downer | 12 |
| Pitching standout | 17 |
| Pitching staff leader | 21 |
| Pitcher you can count on | 24 |
| Pitcher like Jack Morris | 24 |
| Pitcher like Clemens | 20 |
| Pitcher in the first game of a playoff series, usually | 54 |
| Pitcher Clemens, e.g. | 21 |
| Phenomenal flyer | 16 |
| Pete Sampras serve frequently | 30 |
| Person who excels | 17 |
| Perform spectacularly on | 24 |
| Perform perfectly on | 20 |
| Perfect shot | 12 |
| Paul Carrack '70s band | 26 |
| Past master | 11 |
| Passing shot | 12 |
| Pass, and then some | 19 |