Justin Jefferson was not spotted at the Minnesota Vikings' training facility Monday for the start of OTA amid talks on a contract extension.
Jefferson also didn't participate in the earlier portion of the Vikings' offseason program, which, like OTAs, is voluntary.
The Vikings and Jefferson have been discussing terms of the deal for more than a year.
GM Kwesi Adofo-Mensah said previously that they got "unbelievably close" to a deal last summer before tabling the talks at the start of the 2023 regular season.
Last season, Jefferson was leading the NFL in receiving yards (543) when he suffered a right hamstring injury in Week 5. After returning for good in Week 15, he amassed 476 receiving yards, the second-highest total in the league over that period.