Thad Lewis leaves the game with a lower leg injury. #49ers #Texans #LevisStadium...

Thad Lewis leaves the game with a lower leg injury. #49ers #Texans #LevisStadium

Thad Lewis suffers lower leg injury

San Francisco 49ers quarterback Thad Lewis left Sunday's preseason matchup against the Houston Texans with a lower leg injury. He was replaced by rookie Jeff Driskel. He left the field with a noticea
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