The Reds are looking to clinch a top-eight place in the table, in order to seal a last-16 berth and avoid a two-legged play-off next month.
The 20:00 GMT kick-off at the National Stadium promises to be a tricky test, with the Bucharest side currently in eighth spot and harbouring the same aims.
Speaking to MUTV's Mark Sullivan in the Romanian capital, Amorim shed some light on his plans for our final contest at this stage of the competition.
"We have to rotate some players," he said. "Everybody is prepared - and it is crucial for us to stay in the top eight and to avoid the play-offs.