Earlier in the season, there were rumors that Brad Keselowski would leave Team Penske if the two sides couldn't agree on a contract extension.
The two sides eventually worked out a deal, but Keselowski and his team decided to have some fun with NASCAR fans about moving teams.
Ryan Blaney is moving from Wood Brothers Racing to Team Penske after this season, and his No. 21 car will be filled by Paul Menard. But Keselowski and his team released a photo of Keselowski's name plate on the No. 21 car, and the photo was leaked to NASCAR's Reddit page.
Keselowski tweeted about the photo and acknowledged the joke.
Keselowski is staying in the No. 2 car, but it was a nice lighthearted prank prior to the postseason, which begins after the next three regular season races.