Arsenal's poor start to the English Premiership football season hit a new low as a freak own goal from Aaron Ramsey put Liverpool on course for a 2-nil win, while Chelsea left it late to give Andre Villas-Boas his first victory as West Brom were beaten 2-1.
Ramsey put through his own net in the 78th minute when an attempted clearance from young defender Ignasi Miquel struck the Wales midfielder on the head and flashed past stunned goalkeeper Wojciech Szczesny.
That bad break came soon after the dismissal of teenage midfielder Emmanuel Frimpong for an ugly foul on Liverpool's Lucas Leiva.
Luis Suarez added Liverpool's second goal in stoppage time to give the Reds their first win at Arsenal for 11 years.
It was a miserable conclusion to a depressing week for Arsene Wenger, whose Arsenal team have taken just one point from their first two Premier League matches and are yet to score their first goal of the domestic season.
Newcastle earned the bragging rights in the Tyne-Wear derby as Ryan Taylor's free-kick clinched a 1-nil win over bitter rivals Sunderland at the Stadium of Light.
QPR celebrated the start of a new era under Malaysian owner Tony Fernandes with a 1-nil win over Everton.
Aston Villa secured their first victory under new manager Alex McLeish as Blackburn were beaten 3-1 at Villa Park.
Swansea goalkeeper Michel Vorm saved a penalty from Wigan midfielder Ben Watson as the first Premier League game to be played in Wales finished in a nil-all draw at the Liberty Stadium.