The Dallas Cowboys have been trying to get long-term extensions done with three of their key offensive players. Dak Prescott, Amari Cooper, and Ezekiel Elliott are all in line for new deals. So far, Elliott is the only one holding out, but the team is trying to get everything in order.

According to a report from Jane Slater of the NFL Network, Prescott is seeking a deal worth $40 million per season. He has turned down an offer from the Cowboys that would have paid him $30 million per year.

Prescott has seen his name talked about in a lot of different ways. Some think he is well worth a big extension, while others have called him an average quarterback. Either way, he knows what he wants and it will be interesting to see if the two sides can come to an agreement.

Last season with the Cowboys, Prescott ended up completing 67.7 percent of his pass attempts for 3,885 yard, 22 touchdowns, and eight interceptions. He also picked up 305 yards and six touchdowns on the ground. The numbers aren't amazing, but they are more than average.

Dallas can't afford to go back to searching for a long-term answer at quarterback. They also cannot afford to sign Prescott to a deal that doesn't leave them money for the rest of their core. It's a situation to keep an eye on as the regular season continues to draw closer.

Only time will tell if the Cowboys can get a deal done with their quarterback, but this report certainly makes things more interesting.