Dallas Cowboys, offensive tackle Tyron Smith agree to 8-year extension

Dallas Cowboys offensive tackle Tyron Smith blocks teammate

Dallas Cowboys offensive tackle Tyron Smith blocks teammate defensive end Jeremy Mincey during Dallas Cowboys training camp on Friday, July 25, 2014, in Oxnard, Calif. (Credit: AP / Gus Ruelas)

OXNARD, Calif. - The Dallas Cowboys have signed Tyron Smith to an eight-year contract extension that locks up the Pro Bowl left tackle through the 2023 season.

The extension signed Wednesday is worth $98 million, pushing the total value of his deal to 10 years and $110 million. Smith gets a $10 million signing bonus and $40 million in guaranteed money.

The long contract means Smith will likely be the most important blocker for Tony Romo and whoever replaces the 34-year-old quarterback.

Smith was just 20 when Dallas drafted him ninth overall in 2011. He has started all 47 games in his career, missing one game with a sprained ankle in 2012. He played right tackle as a rookie before moving to the left side.

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