An overeager WNBA rookie entered a game wearing her warm-ups, and all coach Becky Hammon could do was laugh

• First-year Las Vegas Aces guard Aisha Sheppard has a serious rookie moment on Thursday.
• The 23rd pick in the 2022 WNBA Draft accidentally checked into the game wearing her warm-up shirt.

A first-year WNBA guard had a hilarious rookie moment during the Las Vegas Aces' blockbuster matchup against the Connecticut Sun Thursday night.

And all head coach and former NBA assistant Becky Hammon could do was laugh.

Aisha Sheppard, the 23rd overall pick in the 2022 WNBA Draft, was ready to go when she walked to the courtside table to check into the game late in the first quarter.

There was only one problem; she was still wearing her warm-up shirt.

DeWanna Bonner, a two-time WNBA champion and four-time All-Star on the Connecticut Sun, walked over to her opponent and tugged on the bright red long-sleeve shirt. Sheppard quickly scrambled to remove the top as Hammon looked on from the sidelines with a massive grin spread across her face.

Rookies gonna rook.

Sheppard saw three minutes on the floor in the Aces' seven-point loss to the Sun — just their second loss of the entire season. But the Virginia Tech alum learned an important lesson ahead of those 180 seconds on the court; double check the shirt before you check into the game.

Check out the full clip below:

—WNBA (@WNBA) June 3, 2022