Sources: Dak's wait bolstered by insurance, ads

There are 50-plus million reasons that Dak Prescott is not pushing for a new contract with the Dallas Cowboys.

Prescott has loss-of-value and disability insurance policies, as well as multiyear endorsement deals, that altogether are valued at more than $50 million, league sources told ESPN.

The insurance policies protect the star quarterback against a career-threatening injury. The endorsement deals, worth more than what some starting NFL quarterbacks are making, are in place for years, according to sources.

Superstar defensive lineman Aaron Donald also had large insurance policies to protect himself from significant injuries while he was negotiating his long-term deal last year with the Los…