Slava Malamud reported on Twitter that the severity of the injury won’t be known today.
“(The hit was) on the knee and there is nothing pleasant about that. I hope it will be OK,” Yevgeny Kuznetsove said, according to Malamud.
A YouTube video of the hit showed Ovechkin being upended and landed hard on the ice.
The 28-year-old Ovechkin has played all nine of his NHL seasons in Washington.
UPDATE: Ovechkin seems to have dodged any serious damage.
He tweeted a photo of himself giving a thumbs up early on Sunday evening.