An own goal from defender Fabricio Coloccini gave Arsenal an unconvincing victory over 10-man Newcastle. Sunderland are still searching for their first win of the Premier League season after earning a point through Jeremain Lens' second-half strike. Jamie Vardy's late penalty earned Leicester a draw away to Bournemouth and preserved his side's unbeaten start to the Premier League season. Jose Mourinho suffered only his second defeat in his 100th home league game in charge of Chelsea as Crystal Palace claimed a shock win at Stamford Bridge.