who is this player Tessa Grubbs?

This has nothing to do with fake, because the player is real. The problem here is probably more the calculation of the ranking and certain errors when displaying players. Because a Zehra Güneş does not even appear in the ranking, although she should actually be from the ranking list points she has collected.

Eh, if you're in doubt, click in the players' name, it will show the exactly calculation for those 258,5 points. 

If you don't agree with that, it's another story,.