The Rangers, eliminated from Stanley Cup Playoff contention, have three games left beginning at the New Jersey Devils on Tuesday (7 p.m. ET; MSG+, MSG 2, NHL.TV). The regular season ends Sunday.
Fast, a forward, has a groin injury. Mats Zuccarello, also a forward, is having an MRI for an undisclosed injury and will not play Tuesday. He leads the Rangers with 52 points (16 goals, 36 assists) and will enter the final season of a four-year contract in 2018-19.
"He blocked a couple of shots the last couple of games," Vigneault said about Zuccarello, 30. "He's having a tough time walking right now."
Fast, 26, has 33 points (13 points, 20 assists) in 71 games, including 12 points (three goals, nine assists) in his past 12.