Donato put Chicago back ahead 2-1 at 10:16 with a wrist shot from the left circle that beat Vasilevskiy to the short side.
"It's obviously nice that we have [Knight] backing us up when we make mistakes...you're playing against Kucherov, (Brayden) Point, these guys are going to create offense and it's a matter of weathering it," Donato said. "The younger guys are starting to understand that. If you do the hard things right, usually good things happen."
McDonagh tied it 2-2 at 19:18 with a snap shot from inside the right circle off a cross-ice pass from Kucherov, who recorded his 999th career point with the assist.
"I liked a lot about our game,” Tampa Bay coach Jon Cooper said. “I didn't like the penalties we took; I thought we took some careless penalties that put us in a little bit of a peril in the third. I didn't like the last minute and I didn't like the result. Everything else, there was a ton of positives to take out of the game, but unfortunately it's a results-oriented game and we didn't get the result."
NOTES: Donato became the fourth Blackhawks player in the past decade to score a go-ahead goal in the final minute of regulation. The others: Connor Bedard (59:06 on Dec. 15, 2024), Patrick Kane (59:43 on Feb. 27, 2019) and Duncan Keith (59:51 on April 4, 2018). … Vasilevskiy’s 13-game winning streak against the Blackhawks ended. It was tied with Thatcher Demko (13 games against the San Jose Sharks) for the longest active win streak against a single opponent. … Nazar has four points (three goals, assist) in his past four games.