Table:
text: 2004 New Orleans Saints season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
1 September 12, 2004 Seattle Seahawks L 21-7 64900
2 September 19, 2004 San Francisco 49ers W 30-27 64900
3 September 26, 2004 at St. Louis Rams W 28-25 65856
4 October 3, 2004 at Arizona Cardinals L 34-10 28109
5 October 10, 2004 Tampa Bay Buccaneers L 20-17 64900
6 October 17, 2004 Minnesota Vikings L 38-31 64900
7 October 24, 2004 at Oakland Raiders W 31-26 45337
8 Bye Bye Bye Bye
9 November 7, 2004 at San Diego Chargers L 43-17 59662
10 November 14, 2004 Kansas City Chiefs W 27-20 64900

text: 2004 New Orleans Saints season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
11 November 21, 2004 Denver Broncos L 34-13 64900
12 November 28, 2004 at Atlanta Falcons L 24-21 70521
13 December 5, 2004 Carolina Panthers L 32-21 58878
14 December 12, 2004 at Dallas Cowboys W 27-13 64056
15 December 19, 2004 at Tampa Bay Buccaneers W 21-17 65075
16 December 26, 2004 Atlanta Falcons W 26-13 64900
17 January 2, 2005 at Carolina Panthers W 21-18 73302

Question: What is the opposition in the game with a viewership of 64,900 week to 15 with a score of L 38-31 for the 2004 New Orleans Saints season?