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:
| Date | Visiting Team | Final Score | Host Team | Stadium |
| --- | --- | --- | --- | --- |
| September 5 | San Francisco 49ers | 16-13 | New York Giants | Giants Stadium |
| September 8 | Dallas Cowboys | 10-19 | Houston Texans | Reliant Stadium |
| September 15 | Oakland Raiders | 30-17 | Pittsburgh Steelers | Heinz Field |
| September 22 | Cincinnati Bengals | 3-30 | Atlanta Falcons | Georgia Dome |
| September 29 | Minnesota Vikings | 23-48 | Seattle Seahawks | Qwest Field |
| October 6 | Baltimore Ravens | 26-21 | Cleveland Browns | Cleveland Browns Stadium |
| October 13 | Miami Dolphins | 24-22 | Denver Broncos | Invesco Field at Mile High |
| October 27 | Indianapolis Colts | 21-26 | Washington Redskins | FedEx Field |
| November 3 | Jacksonville Jaguars | 17-24 | New York Giants | Giants Stadium |
| November 10 | Miami Dolphins | 10-13 | New York Jets | Giants Stadium |
| November 17 | New England Patriots | 20-27 | Oakland Raiders | Network Associates Coliseum |
| November 24 | Indianapolis Colts | 23-20 | Denver Broncos | Invesco Field at Mile High |
| December 1 | Tampa Bay Buccaneers | 20-23 | New Orleans Saints | Louisiana Superdome |
| December 8 | Minnesota Vikings | 22-26 | Green Bay Packers | Lambeau Field |
| December 15 | Arizona Cardinals | 28-30 | St. Louis Rams | Edward Jones Dome |
| December 21 | Philadelphia Eagles | 27-3 | Dallas Cowboys | Texas Stadium |
| December 22 | New York Jets | 30-17 | New England Patriots | Gillette Stadium |
| December 29 | Tampa Bay Buccaneers | 15-0 | Chicago Bears | Memorial Stadium |
Question:
Who was the visiting team that played on September 15?
Answer:
Oakland Raiders