This was important enough to where I felt the need to make a post about it. My post about keeper rotation highlighted the combination of DC and Chicago keepers since they had surprisingly low predicted goals conceded... too low to be right. So, I revisited the data and realized there is a gameweek where neither of them play. So, I now advise NOT to go with a combination of DC and Chicago. I am looking at other potential options, with LA likely being the team I focus on to find a pairing for. LA was a completely different team defensively when they had Omar Gonzalez return from injury and I think Cudicini will be an upgrade over Saunders to boot.
The following keeper combinations have a week where neither play, so their numbers are too low:
Chicago/DC (missing 2 gameweeks in fact)