SOTX racquets-how to tell if it's a fake..

[mtxed]

BTW my racket has the hologram sticker with serial #, does that mean it's real?

[Linus]

Now the racket looks real and there's a "Certificate of Quality", but the information tag is very very very poorly translated (from Chinese to English) and I can see very blatant mistakes (poor punctuation, grammar, spelling, etc.). Should I be worried?

It is common that many Chinese local products have poor translation work as many just simply use software to do the translation. Often the software can only recognise single word or phrases and translate them as they are without consideration of sentence, context or specialised terms, therefore glaring mistakes are made and many of them are laughable. By that alone, you cannot really say it is a fake.