Need Help!!! Mysterious Thumping noise!!!

Hi everyone!

I'm new here and need some help! I have a 2004 VW Jetta GLS 2.0L/5speed tranny. Just recently I started noticing a thumping noise coming from left front side of the car. Then I started to feel it underneath my gas pedal. The noise only present itself when I accelerate hard that's when the thumping begins. When I do let off the accelerator the noise stop. One person told me it's my wheel bearing and another said it's my clutch?

Thanks for any input you may have!

inner cv joint
dropping the clutch will blow them out