FLORHAM PARK, N.J. — Aaron Maybin wasted no time getting on the field with his new team.

The former Buffalo Bills first-round pick agreed to terms with the New York Jets on Wednesday morning, passed his physical a few hours later and signed a one-year deal — all in time to practice in the afternoon.

“I didn’t have a chance to open the playbook,” he said with a laugh. “But I’ve always been pretty good at learning as I go along. We did a little bit of that today, but I’ll be knee-deep in the playbook tonight.”

The once-promising linebacker was waived by Buffalo on Monday after two disappointing seasons in which he had no sacks and never made it into the starting lineup. The Jets will give Maybin the opportunity to fulfill the potential he showed when the Bills made him the 11th overall pick in 2009 out of Penn State.

“He has no clue and doesn’t know a single defense, but it was like, `Hey, just turn that corner,’ and he did that pretty good,” coach Rex Ryan said of Maybin jumping right into things.”

Maybin — nicknamed “Maybe” by some disappointed Bills fans — struggled to keep his weight up while with Buffalo.