Atlanta United stunned MLS Cup favourites Inter Miami, coming from behind to win 3-2 and setting up another trip to Florida to face Orlando City in the Eastern Conference semifinals.

Bartosz Slisz scored the all-important winner to ensure Atlanta overturned the deficit in the series, having lost their first trip to Chase Stadium.

The hosts started brightly, with Matias Rojas sharply turning in the rebound of Lionel Messi's saved shot moments after Jamal Thiare was denied by the post.

However, the Senegalese striker would soon turn things around with two goals in two minutes – he powered his first shot past Drake Callender after some chaos in the box and was left with a simple tap-in from close range for his second.

Diego Gomez was denied an equaliser by VAR shortly after, having drifted offside before receiving Luis Suarez's pass, while Brad Guzen made a string of fine saves to keep Atlanta's lead intact.

He could not keep them out forever though, with Messi peeling away at the back post to nod in an equaliser in the 65th minute.

It was Slisz who would have the last say though, leaping high to power a header past Callender against the run of play, with Atlanta causing the biggest upset of the playoffs so far.

Data Debrief: One for the books

Miami were classed as the favourites to win the MLS Cup this year, but their defeat to Atlanta maybe should not be too big of a surprise, with this their third loss against them this season.

The Five Stripes ended a six-match winless run on the road in the play-offs (D1 L5), but have still conceded multiple goals in each of their last six such games.

Slisz is not known for his goalscoring, but he stepped up at the right time for Atlanta - it was just his second goal in MLS this season, and his first since May 18.