Chelsea & Arsenal lose This page automatically updates

Chelsea's poor start to the season continued as they were beaten by Porto in the Champions League.

Andre Andre gave Porto the lead, volleying in after Asmir Begovic pushed away Yacine Brahimi's effort.

Midfielder Willian equalised on the stroke of half-time, with a superb free-kick from the edge of the area.

Maicon put the home side ahead again with a flicked header at the front post, before Diego Costa rattled the bar with a curling shot.

Chelsea's Cesc Fabregas and Pedro both forced Spain team-mate Iker Casillas - making a record 152nd appearance in the competition - into saves early on.

But despite their early pressure, and a late penalty claim for a handball by Ivan Marcano, they came away from the Estadio do Dragao with nothing.

Arsenal lose again in Europe

Arsenal's hopes of Champions League progress are in serious jeopardy after they slumped to their second successive group stage loss at home to Olympiakos.

Arsene Wenger's side knew nothing other than victory would do after defeat by Dinamo Zagreb in Croatia in their opening game - and with two meetings with group favourites Bayern Munich still to come.

Instead it was a dreadful night for Arsenal, who must now become the first team since Galatasaray in 2012-13 to lose their first two group games and still reach the knockout stage.

The Gunners' display was summed up by the wretched first-half own goal conceded by David Ospina - preferred to Petr Cech in goal - when he dropped Kostas Fortounis's corner into his own net after Theo Walcott equalised Felipe Pardo's deflected shot.

Alexis Sanchez gave Arsenal hope with a 65th-minute header only for Alfred Finnbogason to restore Olympiakos's lead within a minute.