How to restrict sort order in tabular view

Hi,

I want to show Top Performers in table and they must be in a descending order.

Now, what happening with my application is, whenever User mistakenly clicked on the column header, the sorting order is getting collapsed. And, Top Performers will show the buttom record first. 

Yes, I can keep some NOTES on the page regarding such cases. But, In Power BI, is there any way to restrict our table values in specific order?( i.e. If user clicked on any column header, the sorting must not be changed)

It will be so good, If we can able to do it.

Please suggest.

Thanks in Advance

Farin.