The 31-year-old, who has recorded six goals and 17 points in 43 games this season, was not present at Capitals practice on Monday morning.
Currently in the seventh season of an eight-year, $62.4 million contract with an average annual value of $7.8 million, Kuznetsov was drafted 26th overall by Washington in the 2010 NHL Draft. He played a crucial role in helping the Capitals secure their first-ever Stanley Cup championship in 2018.
Throughout his 723-game NHL career, the Chelyabinsk, Russia native has notched 171 goals and 569 points. In postseason play, he boasts 29 goals and 67 points across 87 games.