Sports Week 3: High School Football September 17, 2011 / 12:20 AM EDT / CBS News (Credit: KDKA) Gateway vs. Latrobe (Credit: KDKA) Gateway vs. Latrobe (Credit: KDKA) Gateway vs. Latrobe (Credit: KDKA) Gateway vs. Latrobe Gateway vs. Latrobe North Allegheny vs. Upper St. Clair (Credit: KDKA) North Allegheny vs. Upper St. Clair (Credit: KDKA) North Allegheny vs. Upper St. Clair (Credit: KDKA) North Allegheny vs. Upper St. Clair (Credit: KDKA) North Allegheny vs. Upper St. Clair (Credit: KDKA) Steel Valley vs. South Fayette (Credit: KDKA) Steel Valley vs. South Fayette (Credit: KDKA) Steel Valley vs. South Fayette (Credit: KDKA) Steel Valley vs. South Fayette (Credit: KDKA) Steel Valley vs. South Fayette (Credit: KDKA)