The assignments against the London clubs will be another test of Amorim's squad and the boss oversaw the session, as we prepare for the critical moments of the season.
We will hear from Ruben from 16:30 BST, for a UEFA press conference, as he previews the crucial date in Bilbao. He will no doubt also be asked about Friday's Stamford Bridge encounter.
A number of youngsters were present as the group worked on stretches and weights out on the training pitch, under Manchester sunshine.
Jonny Evans and Toby Collyer took part, after their recent injury lay-offs, while, encouragingly, Diogo Dalot was spotted finishing an individual session on the grass in advance of the players entering the pitches.