Slicer issue

Hi, 

We have a data set where we have a column name as 'Day' which has weekdays name. When we are trying to put it in slicer, it goes on random sequence. How can we get a standard sequence like Monday, Tuesday, Wednesday and so on. 

I created a table having weekdaysnumbers linked with Weekdays, still there is no option to arrange weekdaysnumbers in accesnding order.

Thanks