Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Week | Date | Opponent | Result | Game site | Attendance |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 1987-09-13 | at Buffalo Bills | W 31–28 | Rich Stadium | 76,718 |
| 2.0 | 1987-09-21 | New England Patriots | W 43–24 | The Meadowlands | 70,847 |
| 3.0 | 1987-09-27 | at Pittsburgh Steelers | Cancelled due to players' strike | Cancelled due to players' strike | Cancelled due to players' strike |
| 4.0 | 1987-10-04 | Dallas Cowboys | L 38–24 | The Meadowlands | 12,370 |
| 5.0 | 1987-10-11 | at Indianapolis Colts | L 6–0 | Hoosier Dome | 34,927 |
| 6.0 | 1987-10-18 | Miami Dolphins | W 37–31 (OT) | The Meadowlands | 18,249 |
| 7.0 | 1987-10-25 | at Washington Redskins | L 17–16 | Robert F. Kennedy Memorial Stadium | 53,497 |
| 8.0 | 1987-11-01 | Indianapolis Colts | L 19–14 | The Meadowlands | 60,863 |
| 9.0 | 1987-11-09 | Seattle Seahawks | W 30–14 | The Meadowlands | 60,452 |
| 10.0 | 1987-11-15 | at Kansas City Chiefs | W 16–9 | Arrowhead Stadium | 40,718 |
| 11.0 | 1987-11-22 | Buffalo Bills | L 17–14 | The Meadowlands | 58,407 |
| 12.0 | 1987-11-29 | Cincinnati Bengals | W 27–20 | The Meadowlands | 41,135 |
| 13.0 | 1987-12-07 | at Miami Dolphins | L 37–28 | Joe Robbie Stadium | 62,592 |
| 14.0 | 1987-12-13 | at New England Patriots | L 42–20 | Sullivan Stadium | 60,617 |
| 15.0 | 1987-12-20 | Philadelphia Eagles | L 38–27 | The Meadowlands | 30,572 |
| 16.0 | 1987-12-27 | at New York Giants | L 20–7 | Giants Stadium | 68,318 |
Question:
Who did the Jets play in their pre-week 9 game at the Robert F. Kennedy memorial stadium?
Answer:
at Washington Redskins