To accomplish this, they'll need the help of all their key players, starting with Connor McDavid and Leon Draisaitl. Besides #97, Ryan Nugent-Hopkins, who was the first overall pick in 2011, has also been performing well in the playoffs. Unfortunately, he was notably absent from practice.
Needless to say, his loss would be significant, but the decision is understandable. If he gets everyone else in the locker room sick, the Oilers are no better off.
Nonetheless, I personally expect him to be in his position for Monday night's game. It's the most important game of his career, and he won't want to miss it for anything.
If he makes his teammates sick, it's not that dramatic because, win or lose, it will be their last game of the season.