Greg Maddux got Kris Bryant pretty good, according to this ad from Red Bull.
The Chicago Cubs third baseman and reigning NL MVP was at the College of Southern Nevada getting some light offseason batting practice in. Maddux, disguised as the 'sound guy,' was standing behind the batting cage and Bryant, now a World Series champion, had no idea who he was. Maddux began making some off-hand comments, prompting Bryant to remark that the "sound guy has a bit of an attitude."
Then, the batting practice pitcher (who was in on the prank) said he had to go proctor a study hall for college players because another coach bailed.