WATCH: Fake bearded Greg Maddux pranks Cubs Kris Bryant with his curveball

Hall of Famer pretended to be boom mic guy, kept giving batting advice

LAS VEGAS — Greg Maddux fooled plenty of hitters during his career but maybe never in a disguise. 

In a video posted Thursday , the Hall of Fame pitcher donned a fake beard and posed as a sound guy throwing his trademark curveball during a round of batting practice with unsuspecting Chicago Cubs star Kris Bryant.

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The prank’s premise: Maddux patiently held a boom mic and offered occasional swing critiques during a video shoot while Bryant took cuts against another pitcher who left, allowing Maddux to step in. 

“This sound guy’s got a good curveball what is this?” asked Bryant, laughing. 

The reveal came when the pitcher asked Bryant to sign the bat “to Greg Maddux.”

Last year Bryant pranked a community college team by convincing them he was a transfer.

WATCH: Greg Maddux pranks Kris Bryant during BP with his arsenal of pitches https://t.co/UOx2hQBZg3 via @CBSSPORTS pic.twitter.com/p0r1UsfW4c

— CBS Sports MLB (@CBSSportsMLB) February 16, 2017