Full ppr flex option wr/rb

Any advice would be greatly appreciated!!

Malcom Brown Vs SF

Manny Sanders Vs Tenn

Stefon Diggs Vs Philly

Demarcus Robinson Vs Houston

-I understand Malcom brown is probably the easy choice, but the 49ers D is really stout against the run.

-I could also see Robinson or Diggs have a nice game today.

-Manny is probably a sit for me

What do you guys think?