Matthew Stafford's career with the Detroit Lions just got longer.
The former Georgia quarterback, a former Dallas high school star, and the Lions agreed to terms on a $53 million, three-year extension to keep him under contract through 2017, according to a person familiar with the deal.
The person, who spoke on the condition of anonymity because the agreement has not been announced, said Stafford will make $41.5 million in guarantees as part of a new contract.
Detroit drafted Stafford No. 1 overall in 2009 and signed him to a six-year contract worth as much as $78 million with $41.7 million in guarantees. After two injury-shortened seasons, he helped the franchise reach the playoffs two years ago for the first time in more than a decade.
A month ago, Stafford vowed that he would focus on football while his agent and the team negotiated.
"I don't play this game to get contracts," he said in June. "I play this game to win games."
The Lions didn't do much of that last year, losing their last eight games to finish 4-12.
Stafford threw more interceptions and had less than half as many touchdown passes in 2012 as he did the previous year.
After playing in just 13 games over two seasons, he flourished in 2011 with 41 TD passes while completing 64 percent of his attempts and throwing 16 touchdowns.
He stayed on the field last season, but his passing percentage dipped as did his TD passes (20) while he threw one more interception.
"Matt's not happy with last year," Lions coach Jim Schwartz said during last month's minicamp. "None of us were happy with last year, but you also can't overreact."
49ers: Safety Eric Reid, the team's first-round pick, signed a four-year contract. Financial terms of the deal were not disclosed. The 49ers drafted Reid 18th overall in April.
Jaguars: Fifth-round draft pick Denard Robinson signed a contract. A college quarterback at Michigan who is learning how to play running back in Jacksonville, Robinson is listed as an "offensive weapon."
Broncos: Tom Heckert, the team's director of pro personnel, was arrested in Parker, Colo., on the night of June 11 and charged with driving under the influence and careless driving, according to the Douglas County Sheriff's Department. The news comes one day after Broncos director of player personnel Matt Russell apologized for his arrest on suspicion of driving under the influence.