Aaron Rodgers said he was going to go after the Green Bay Packers’ two rookie cornerbacks during organized team activities.

On one play Thursday, first-round pick Jaire Alexander got the best of the two-time MVP.

According to reporters on the scene at Ray Nitschke Field, Alexander intercepted an attempted back-shoulder throw to Geronimo Allison during a live team period in the red zone.

He used his quickness to break on the throw and his well-documented ball skills to complete the play.

One interception during a May practice doesn’t mean the Packers should start sizing up their rookie cornerback for a gold jacket, but it is the first glimpse during an open practice of Alexander’s playmaking ability. And while Rodgers always takes more chances in the practice setting, it’s still noteworthy that Alexander produced a turnover against one of the best quarterbacks in NFL history at avoiding interceptions, and on a throw he rarely misses.

Secondary coach Jason Simmons called it a “confidence booster” for the rookie.

In college, Alexander produced seven interceptions, including five during a breakout season in 2016.

Alexander wasn’t the only young player to get Rodgers on Thursday. Later in the practice, linebacker Ahmad Thomas picked off Rodgers in the passing under pressure drill. He jumped a slant and made the interception.