Atlanta
Gianluca Scamacca put the visitors ahead after 11 minutes when Teun Koopmeiners found him unmarked in the box to fire low into the far post for his 16th goal in all competitions this season.
The story began on May 4, 1891.
Juventus coach Massimiliano Allegri agreed with the referee's decision to send him off during his side's shock 3-0 defeat to Atalanta and suggested there was an air of inevitability about his team's first domestic defeat of the season.
Atlanta United won the Major League Soccer title in its second season of existence, defeating the Portland Timbers 2-0 in the MLS Cup final on Saturday.
In the Western Conference, the Portland Timbers and Sporting Kansas City battled to a 0-0 draw in their opening leg.
Josef Martinez and Miguel Almiron scored goals and Atlanta United kept Zlatan Ibrahimovic quiet in a 2-0 road win over the LA Galaxy on Saturday at StubHub Center in Carson, Calif.
Atlanta's top officials holed up in their offices on Saturday as they worked to restore critical systems knocked out by a nine-day-old cyber attack.
The world's busiest airport, in the US city of Atlanta said that power was back on after an outage left passengers in the dark and affected hundreds of flights.
Seattle Seahawks kicker Blair Walsh missed a last-gasp field goal as the Atlanta Falcons held on for a crucial 34-31 victory on Monday.
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