Table:
text: 1960 New York Giants season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
11 December 4, 1960 Dallas Cowboys T 31–31 55033
12 December 11, 1960 at Washington Redskins W 17–3 14077
13 December 18, 1960 Cleveland Browns L 48–34 56517

text: 1960 New York Giants season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
1 September 25, 1960 at San Francisco 49ers W 21–19 44598
2 October 2, 1960 at St. Louis Cardinals W 35–14 26089
3 October 9, 1960 at Pittsburgh Steelers W 19–17 40323
4 October 16, 1960 Washington Redskins T 24–24 60625
5 Bye Bye Bye Bye
6 October 30, 1960 St. Louis Cardinals L 20–13 58516
7 November 6, 1960 at Cleveland Browns W 17–13 82872
8 November 13, 1960 Pittsburgh Steelers W 27–24 63321
9 November 20, 1960 Philadelphia Eagles L 17–10 63571
10 November 27, 1960 at Philadelphia Eagles L 31–23 60547

Question: What was the opponent ahead of week 11 of the 1960 New York Giants season with a attendance of 63,571?