Sean Patrick Villanueva just got the first sub-5 3x3 Single with Roux!
https://live.worldcubeassociation.org/competitions/CubersCafeOpen2019/rounds/333-r2
Scramble (generated from the solution):
D' F2 D L2 R2 D2 R2 F' R' B D' F U2 L' F' L D' U'
Solution:
y // Inspection
U L R U R' D D // FB
R...