Which former East Contra Costa County area high school athletes will be active on Sunday, Jan. 4?

Ronnie Rivers and Sione Vaki

Dec 31, 2025

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On Sunday, Jan. 4, these former East Contra Costa County area high school standouts will be in action.

Ronnie Rivers and Sione Vaki

Ronnie Rivers

Los Angeles Rams

Running back

5′9″ 198

Freedom High School

Hometown: Castro Valley

Next Game: vs. Arizona Cardinals, Sunday, Jan. 4, 2:05 p.m.

Ronnie Rivers and Sione Vaki

Sione Vaki

Detroit Lions

Running back

5′11″ 216

Liberty High School

Hometown: Antioch

Next Game: vs. Chicago Bears, Sunday, Jan. 4, 3:25 p.m.

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