That wasn't the point of my reply,
The poster says King soloed Marco while Queen soloed Sanji,
But the spoiler says Sanji took King + Queen at the same time.
Which debunks the excuse that Sanji was exhausted because of Queen alone and Marco was exhausted because King alone.
Basically Sanji and Marco swapped positions after Marco soloed them for 20 chapters, Sanji could take them for 1 or 2 chapters, and then he goes down while Marco was resting after 20 chapters of soloing them,
Then Marco sees Sanji is down, before King can attack Zoro and before Sanji can stop King, Marco once again stops King's attack like its nothing and moves faster than both King and Sanji. Then Queen runs to help King again in 2 v 1 as usual.