Derrick Rose Drags Nick Young Into Rape Case

Derrick Rose is dragging Nick Young into his alleged rape case -- using his fellow NBA star in an attempt to discredit the accuser.

Rose's Jane Doe accuser claims she was traumatized by the alleged gang rape because she's "prudish" and sexually inexperienced. Rose's team says that's a big fat lie ... and they have a text referring to fellow NBA guard Nick Young to prove it.

According to docs obtained by TMZ Sports, the text was sent from Jane Doe to her roommate in November 2014. It says, "since u goin to nicks can u please tell him to give u my bra lol."

Rose says the roommate confirmed ... Jane Doe was referring to Nick Young in the text (and yes, Nick was dating Iggy at the time).

The docs also claim Jane Doe interacted with lots of celebs and had sexual relationships with at least 2 NBA players other than Rose ... bringing a major question about her credibility into play.