Tracy McGrady -- Yeezys Are Terrible For Basketball ... But I Need 'Em!!!

Tracy McGrady has a message for NBA players -- NEVER BALL IN YEEZYS!!!!

The ex-NBA star loves the shoes ... but says Nick Young's decision to play in 'em earlier this season was downright stupid -- 'cause they'll murder your feet.

That being said ... T-Mac says he NEEDS to get some of Kanye's shoes in his collection -- and makes a pretty hilarious plea to the rapper for a few pairs.

The best part ... when we asked why he wouldn't just buy a pair, Tracy said -- "Why should I buy 'em?? I'm with Adidas ... I AM ADIDAS!!"