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 | Venue | Attendance |
| --- | --- | --- | --- | --- | --- |
| 1.0 | September 17, 1961 | Detroit Lions | L 17-13 | Milwaukee County Stadium | 44307.0 |
| 2.0 | September 24, 1961 | San Francisco 49ers | W 30-10 | City Stadium | 38669.0 |
| 3.0 | October 1, 1961 | Chicago Bears | W 24-0 | City Stadium | 38669.0 |
| 4.0 | October 8, 1961 | Baltimore Colts | W 45-7 | City Stadium | 38669.0 |
| 5.0 | October 15, 1961 | at Cleveland Browns | W 49-17 | Cleveland Stadium | 75042.0 |
| 6.0 | October 22, 1961 | at Minnesota Vikings | W 33-7 | Metropolitan Stadium | 42007.0 |
| 7.0 | October 29, 1961 | Minnesota Vikings | W 28-10 | Milwaukee County Stadium | 44112.0 |
| 8.0 | November 5, 1961 | at Baltimore Colts | L 45-21 | Memorial Stadium | 57641.0 |
| 9.0 | November 12, 1961 | at Chicago Bears | W 31-28 | Wrigley Field | 49711.0 |
| 10.0 | November 19, 1961 | Los Angeles Rams | W 35-17 | City Stadium | 38669.0 |
| 11.0 | November 23, 1961 | at Detroit Lions | W 17-9 | Tiger Stadium | 55662.0 |
| 12.0 | December 3, 1961 | New York Giants | W 20-17 | Milwaukee County Stadium | 47012.0 |
| 13.0 | December 10, 1961 | at San Francisco 49ers | L 22-21 | Kezar Stadium | 55722.0 |
| 14.0 | December 17, 1961 | at Los Angeles Rams | W 24-17 | Los Angeles Memorial Coliseum | 49169.0 |
Question:
Who was the opponent at memorial stadium?
Answer:
at Baltimore Colts