Twenty-year-old Joaquin Rico was sentenced Tuesday. He and 25-year-old Joseph Richard Espinoza pleaded guilty to the May 15 robbery.
Prosecutors say the pair threw a large rock through the store's window at 5 a.m., soon after the clerk opened the store.
One man wore a green thong; the other wore blue.
Prosecutors say Rico grabbed the store's clerk by the neck and punched her in the face several times, breaking her jaw. He then collected about $100 from the cash registers, while Espinoza stole 37 packs of cigarettes.
Espinoza's sentencing is scheduled for Monday.
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