Chrissy Teigen -- Baby's First NBA Playoff Game ... Kinda

Here's Chrissy Teigen taking selfies with her brand new baby, Luna, at Oracle Arena right before the Warriors game ... but don't worry, baby's ears weren't blown out by the 20,000 screaming fans.

Teigen and 6-week-old Luna were checking out the place before Game 1 of the NBA Finals while her husband, John Legend, rehearsed for his National Anthem performance.

Chrissy made it clear her daughter was "noooooot going to be at the game."

Later on, Chrissy and John took their courtside seats for tip off ... while Luna was somewhere away from the madness.

#PropsToTheBabySitter