How did Geno Smith get ready for offseason Jets practices? He got to work with one of his crosstown rivals.

Smith, the Jets’ presumptive starter in the absence of free agent Ryan Fitzpatrick, participated in an All-Star-caliber boot camp in Miami with several standout receivers — including Giants star Odell Beckham, Jr., according to the Miami Herald.

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The report says that the group of eight or nine NFL players also included Beckham’s good friend and Dolphins receiver Jarvis Landry and fellow Pro Bowler Antonio Brown of the Steelers. Vikings cornerback Xavier Rhodes was one of the defensive backs charged with containing the talented crop of pass catchers.

And their quarterback? None other than Smith, who spent a portion of 2015 recuperating from a broken jaw (suffered at the hands of his former teammate IK Enemkpali) and later watching Fitzpatrick, his former backup, lead the Jets to a 10-6 record.

Miami roots are the ties that bind the group, which consists of mostly Florida natives except Beckham, who is from Louisiana (he went to LSU with Landry). Twice a week the players descended on a North Miami practice field and got to work. And according to Landry, the drills weren’t typical.

“A lot of it feels like it’s been made up by (Brown), but it’s some good stuff in there,” Landry told the paper. “A lot of footwork drills, get some one-on-ones against longer corners like Xavier Rhodes and guys like that.”