It didn’t take long for several puzzle pieces to fall into place for Omar Cooper Jr.

“I would definitely say it was the Titans game,” the Jets’ first-round rookie WR said of the season opener, in which he had just 1 reception ─ his artful 30-yard catch-and-run that set up the offense’s first touchdown of the season. “Coming up to this level, you’ve got to get that confidence, and I feel like that catch allowed me to get that confidence and say, ‘OK, you’re here and you’re supposed to be here.’ “

Then after 4 games on Injured Reserve to get his ankle right after only 5 offensive snaps at Tennessee, Cooper showed he’s supposed to be here even more at New England on Sunday. In fact, the young man from Indiana with a 4.42-second 40 time sped onto two lists of Jets rookie receiving achievement.

With his 103 receiving yards on 6 catches, Cooper joined former Jets WR Derrick Gaffney and fellow wideout Garrett Wilson as the only pass-catchers at any position in franchise history to get their first 100-yard outings in their second games as Jets rookies: