NEW YORK -- A federal prosecutor on Friday said former business manager Christian Dawkins, a defendant accused of bribing college basketball coaches, lied on the witness stand at his New York City trial.

Dawkins testified earlier this week as the only defense witness. He denied ever bribing coaches at major universities in exchange for help signing NBA-bound players as clients.

Prosecutor Noah Solowiejczyk reminded jurors in a closing argument Friday how images from a sting operation show Dawkins giving envelopes stuffed with cash to assistant coaches from Creighton and schools in Las Vegas in 2017. He said there was no proof backing Dawkins' far-fetched claim that the coaches later gave the money back.

Dawkins and amateur basketball coach Merl Code have pleaded not guilty to bribery.

Defense closing arguments are set for Monday.