Which ex-high school standouts from East Contra Costa County area will play on Sunday, Dec. 14?

Sione Vaki and Ronnie Rivers

Dec 10, 2025

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These former East Contra Costa County area high school standouts will be competing on Sunday, Dec. 14.

Sione Vaki and Ronnie Rivers

Ronnie Rivers

Los Angeles Rams

Running back

5′9″ 198

Freedom High School

Hometown: Castro Valley

Next Game: vs. Detroit Lions, Sunday, Dec. 14, 4:25 p.m.

Sione Vaki and Ronnie Rivers

Sione Vaki

Detroit Lions

Running back

5′11″ 216

Liberty High School

Hometown: Antioch

Next Game: vs. Los Angeles Rams, Sunday, Dec. 14, 4:25 p.m.

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