Although Phil Jones has had an awfully impressive start to his United career, and only made a substitute appearance for the Red Devils, Wednesday's match highlighted one part of the youngster's game that needs improvement.
Being deployed as right-back after replacing Fabio, Jones made some long runs down the right flank. One notable run had Jones with the ball in space and a half-step in front of Benfica's Emerson.
With his United teammates crashing the net expecting a low cross across the face of the goal, Jones instead opted to take another stride, allowing Emerson to cut off the ball, resulting in a corner kick.
This, along with other instances highlights Jones' need in to improve offensively. At United, full-backs are expected to contribute offensively, and passing up chances like Jones did will not be tolerated.