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 | Attendance |
| --- | --- | --- | --- | --- |
| 1.0 | August 31, 1997 | at St. Louis Rams | L 38-24 | 64,575 |
| 2.0 | September 7, 1997 | San Diego Chargers | L 20-6 | 65,760 |
| 3.0 | September 14, 1997 | at San Francisco 49ers | L 33-7 | 61,838 |
| 4.0 | September 21, 1997 | Detroit Lions | W 35-17 | 50,016 |
| 5.0 | September 28, 1997 | at New York Giants | L 14-9 | 68,891 |
| 6.0 | October 5, 1997 | at Chicago Bears | W 20-17 | 58,865 |
| 7.0 | October 12, 1997 | Atlanta Falcons | L 23-17 | 65,619 |
| 8.0 | October 19, 1997 | Carolina Panthers | L 13-0 | 50,963 |
| 9.0 | October 26, 1997 | San Francisco 49ers | L 23-0 | 60,443 |
| 10.0 | Bye | Bye | Bye | Bye |
| 11.0 | November 9, 1997 | at Oakland Raiders | W 13-10 | 40,091 |
| 12.0 | November 16, 1997 | Seattle Seahawks | W 20-17 | 50,493 |
| 13.0 | November 23, 1997 | at Atlanta Falcons | L 20-3 | 48,620 |
| 14.0 | November 30, 1997 | at Carolina Panthers | W 16-13 | 57,957 |
| 15.0 | December 7, 1997 | St. Louis Rams | L 34-27 | 54,803 |
| 16.0 | December 14, 1997 | Arizona Cardinals | W 27-10 | 45,517 |
| 17.0 | December 21, 1997 | at Kansas City Chiefs | L 25-13 | 66,772 |
Question:
Which opponent has a week smaller than 15, and a Result of l 23-17?
Answer:
Atlanta Falcons