Table:
text: 1979 Pittsburgh Steelers season
Schedule
Schedule
Week Date_ Kickoff_ET_ Opponent Result_ Record Game_Site
8 Mon. Oct. 22 9:00pm Denver Broncos W 42–7 6–2 Three Rivers Stadium
9 Sun. Oct. 28 1:00pm Dallas Cowboys W 14–3 7–2 Three Rivers Stadium
10 Sun. Nov. 4 1:00pm Washington Redskins W 38–7 8–2 Three Rivers Stadium
11 Sun. Nov. 11 1:00pm at Kansas City Chiefs W 30–3 9–2 Arrowhead Stadium
12 Sun. Nov. 18 4:00pm at San Diego Chargers L 35–7 9–3 San Diego Stadium
13 Sun. Nov. 25 1:00pm Cleveland Browns W 33–30 OT 10–3 Three Rivers Stadium
14 Sun. Dec. 2 1:00pm Cincinnati Bengals W 37–17 11–3 Three Rivers Stadium
15 Mon. Dec. 10 9:00pm at Houston Oilers L 20–17 11–4 Astrodome
16 Sun. Dec. 16 1:00pm Buffalo Bills W 28–0 12–4 Three Rivers Stadium

Question: Who was the opponent in the Steelers game that ended 20-17 in the 1979 Pittsburgh Steelers season?