The Kuala Lumpur clash is live on MUTV, kicking off at 13:45 BST, and there is a wealth of experience available to the boss to choose from.
The 32-man squad that travelled includes most of the senior players, led by captain Bruno Fernandes, bolstered by the inclusion of some of the club's exciting youngsters.
Speaking at a press conference to preview the match, Ruben admitted it was his duty to ensure his team performs at the vast Bukit Jalil Stadium.
"First of all, every game we play, we have a big responsibility because all our fans are watching," said Amorim.