I have never watced Sloetjes and Pietersen as MB. Were they good at that position as well by the way will Wensink be out for ECh as well
I don't think Sloetjes ever was MB
But as for Pietersen, I once watched her as MB in Dutch Junior NT in 2006, and I remember thinking that she was by far the best player of that Dutch team. Grothues and Schoot (as OPP ) also were part of that team...