OXNARD, Calif. -- With a history of reaching long-term contract extensions with core players, the Dallas Cowboys hope to jump-start negotiations with Pro Bowl center Travis Frederick while in California in training camp.

“Nothing scheduled, but pretty sure that certainly we’ll broach that and approach that with his team,” executive vice president Stephen Jones said. “Travis has been great for us. Not only is he a great football player on the field who represents, as Jason [Garrett] said, with most of our guys [he's] what you want off the field. He’s a guy we want to be around here.”

The Cowboys picked up the fifth-year option on Frederick’s contract for 2017, worth more than $8 million, earlier in the offseason.

Travis Frederick, here snapping during Pro Bowl practice back in January, is at the center of the Cowboys' plans for the long-term, according to Stephen Jones. Kirby Lee/USA TODAY Sports

Two years ago the Cowboys signed left tackle Tyron Smith to an eight-year extension worth nearly $98 million and included $40 million guaranteed after he signed his fifth-year option.

The Atlanta Falcons signed center Alex Mack to a five-year deal worth $45 million, which included $28.5 million guaranteed. The $9 million average per season is the highest in the NFL for a center. Frederick, 25, has been named to the Pro Bowl in each of the past two seasons and has not missed a start in his career.

Potentially complicating the talks is the future of Zack Martin, who was picked in the first round the year after the Cowboys took Frederick in the first round. With Smith’s cap figures in 2017 and ’18 at $15.8 million, and with hefty cap figures for Tony Romo, Dez Bryant and Ezekiel Elliott, Jones will have to be creative.

“It’s a challenge but it’s a great one to have. Wish we had them at every position, because you’re talking about three quality, quality guys here on and off the field,” Jones said. “I mean, that’s what you want, and certainly we want to keep those guys together.”