Fabricio Coloccini's own goal helped Arsenal clinch their second Premier League triumph in 2015-16 season, as they beat Newcastle 1-0 on Saturday.
In the first half, Newcastle striker Aleksandar Mitrovic was sent off after he unnecessarily stamped on Francis Coquelin's ankle, Sport24 reports.
Arsenal scored their winning goal in the 52nd minute, when winger Alex Oxlade-Chamberlain's angled shot was deflected by the Coloccini's heel into the net.
Earlier, Arsene Wenger's side had claimed their first victory over Crystal Palace before their goalless draw with Liverpool.
Arsenal will play their next match against Stoke City.