Stand him next to Joel Embiid ... because that's exactly what happened when Yasiel Puig ran into the 76ers star in Beverly Hills and TMZ Sports cameras caught the whole thing.

Embiid was eating a meal at Il Pastaio in Beverly Hills when we got Puig walking up to him to say hi. But, it was when Embiid stood up to take a picture that the size became an issue.

To be fair to Puig, Embiid is 7'0" tall, so it would basically take Yao Ming to make him look small -- but still, it's pretty funny when you see the two guys next to each other.

BTW ... Puig's car is ridiculous ... and he showed it to the cameras after he was done making a new friend ... it's a Dodger blue Lambo, which now that he's been traded to Cincy, makes us all sad.