Rashford has got new momentum in his football career since he went to Villa on loan from Manchester United last winter.
Watkins has scored 15 goals this season and, in Emery's own words, has been "fantastic".
Yet Emery is hesitant to start the duo up front from the start in what is Villa's most important match of the year. The time is not ripe for it, he believes.
The next step is, if time permits, to play them together. I want to test, but not now, says Emery at the press conference ahead of Tuesday evening's Champions League quarterfinal return at Villa Park.
Emery is not only focusing on the starting eleven against PSG. He has a comprehensive plan.
In my plan, 90 minutes, possible extra time and penalties are included. Every player must be aware of their task and how we handle the match emotionally and tactically, he says.
In the other quarterfinal on Tuesday evening, Dortmund will host Barcelona.
Barcelona won the first meeting 4–0.
On Wednesday, the remaining quarterfinals will be decided: Inter–Bayern Munich (2–1), Real Madrid–Arsenal (0–3).
