Jets wide receivers Brandon Marshall and Eric Decker were back at the team’s headquarters Tuesday for the team’s practice.

The two receivers were both absent from last week’s three practices, which are voluntary. A source told The Post Decker’s absence was related to the ongoing contract standoff between the team and free-agent quarterback Ryan Fitzpatrick. Decker’s wife posted photos of their family on vacation on Instagram.

Both Decker and Marshall have been vocal this spring in their support for Fitzpatrick and desire for him to return.

The Jets have three voluntary practices this week, four next week and then their mandatory minicamp on June 14-16.

Fitzpatrick remains unsigned after close to three months on the open market. The Jets have offered him a three-year, $24 million with incentives that could boost it to $36 million, according to sources. The deal would pay Fitzpatrick $12 million in the first year and $6 million both the second and third years. The NFL Network reported at least $15 million is guaranteed.

Tuesday’s practice was not open to the media.