Hamilton now sits just 12 points behind Rosberg, who needs just a podium finish to secure the title, regardless of his team mate's result.
"As Bernie would have ordered it, there will be a showdown in Abu Dhabi," Wolff said. "12 points gap, so they are going to drive it out on track. We just have to give them two cars so they can fight it out on the track."
"You can't expect a one-two in these conditions and this is what is a rare achievement. You have such tricky conditions and to drive it home with a one-two and a faultless drive of Lewis with the best pace in the field. I'm very happy about that result, it's maybe the best result of the season."
Bahrain International Circuit - Winter testing