Reaves was hurt early in Monday's game vs. the Flames and did not return. Moving Reaves to IR means that the Rangers will not have to make a move to activate Kaapo Kakko, who is expected to return to the lineup on Friday.
Reaves missed Game 6 after being added to the COVID-19 reserve list but the Golden Knights are hopeful that he will be available for Game 7. Head coach Pete DeBoer said that "after a positive test you must have multiple negative tests to prove it was a false positive, and they’re still waiting on those results."
Reaves has missed the last three games with a lower-body injury but travelled with the team to St. Louis and will be a game-time decision on Monday. Reaves will likely replace Patrick Brown in the lineup if he plays.
Reaves was picked up from Pittsburgh midseason last year, and picked up two assists in 21 games with Vegas. He became a key member of their fourth line and a fan favourite, which is why he is getting nearly three million per season.
Reaves has picked up two goals and 18 PIMS in 10 playoff games this postseason, but it looks like he will sit in Game 5 with Will Carrier (undisclosed) returning to the lineup.