Marcus Rashford scored two goals and created another as Manchester United ended Arsenal's winning start to the season with a 3-1 victory at Old Trafford.
Antony, the Brazilian winger signed from Ajax on Deadline Day, marked his debut with a 35th-minute goal from a sweeping team move.
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Arsenal levelled on the hour through Bukayo Saka’s first of the season, but Man Utd restored their lead six minutes later, when Rashford raced on to Bruno Fernandes’ precise through-ball to finish.
Rashford scored another breakaway goal to condemn the Gunners to their first defeat of the campaign.
A fourth successive win sends United up to fifth place with 12 points, three behind leaders Arsenal.
Brighton go fourth
Earlier in the day, Brighton & Hove Albion moved up to fourth with a brilliant 5-2 victory over Leicester City.
Despite conceding to Kelechi Iheanacho’s first-minute strike, Graham Potter’s men went 2-1 up thanks to Luke Thomas’ own goal and a Moises Caicedo effort.
Patson Daka brought the visitors level, but the second half was one-way traffic as Leandro Trossard and an Alexis Mac Allister brace, including a wonderful added-time free-kick, completed the win.
After scoring five goals for the first time in the top-flight, Brighton lie just two points off top spot, while Leicester, who are enduring their worst start to a Premier League campaign, remain at the foot of the table with one point from six matches.