Tennis Star Eugenie Bouchard Slams Taylor Swift ... You're Always Playing the Victim!

A tennis star with a HUGE backhand directed at Taylor Swift -- says she's sick of the singer always portraying herself as the victim ... just like she's doing in the Kanye West feud.

The tennis star is 22-year-old Eugenie Bouchard -- who's a huge pop culture fan -- and was asked about the Taylor vs. Kanye situation after she was knocked out of the Citi Open this week.

You gotta watch the clip (around 6:00) ... Bouchard says she's a huge Taylor fan -- "but I feel like sometimes she portrays herself as the victim a lot and she did this time around."

Bouchard -- who knows A LOT about the feud -- says she also doesn't care that Kanye didn't specifically ask Taylor for permission to call her a bitch in his song "Famous."

"You approved the thing where Kanye said he'd have sex with you but you didn't hear the time he said bitch? Like, come on."