Linebacker Sean Lee will be with the Dallas Cowboys through 2019. Lee signed a six-year extension Wednesday worth as much as $51 million, including a $10 million signing bonus, according to a source. The base value of the deal is $42 million. He will make a $630,000 base salary in 2013, and will have base salaries of $5.5 million (2014), $2.5 million ('15) and $3 million ('16), with $7 million base salaries from 2017 to '19.