"Wouldnt it be most simple to simply highlight those cells with data and print that selection?"
Hi Chris,
No.
It might be if Numbers offered the menu option File > Print Selection.
But it doesn't.
But this is not Excel. You are not required to have an ocean of empty cells surrounding an island of data.
What would is simplest is to start with a table that contains only the rows and columns that you are actually using:

If you expand the team to include more players, it's quite easy to add a row to the table for each player.
If you expand the list of position categories, it's just as easy to add a column for each new category.
Regards,
Barry