Two or three years down the line, Richard Sherman or Earl Thomas might feel much like Marshawn Lynch does now: underpaid on a contract that once helped set the market with multiple years to go.

Lynch began his holdout Friday in hopes the Seattle Seahawks will upgrade his deal, which has two years and $13 million remaining. But the precedent such an upgrade would set is perhaps the most important reason the Seahawks don't seem interested in appeasing their star running back with more money.

"It's a contract for a reason. We made a decision and it was signed, by us and by them," Carroll told USA TODAY Sports after the Seahawks' first training camp practice. "We expect them to honor their contract just as we will. We're going to honor it and we expect them to do the same. …

"We've had a big plan for a long time working here, and Marshawn is a huge part of that plan, and we made a huge commitment to him a couple years ago. He remains a big part of that plan – if he'll show up. The same thing will carry over to Doug (Baldwin) and Richard and Earl and Kam (Chancellor) and all of the guys that have signed with us."

Carroll said he doesn't have any idea when or if Lynch might show up. He faces a $30,000 fine for each day he misses and partial signing bonus forfeiture if his absence reaches six days.