Petr Cech believes Arsenal will have to win all their remaining if they are to secure a place in the top five of the Premier League. The Gunners are currently six points adrift of fifth-placed London rivals Chelsea, with both sides having a maximum of 15 points to play for from their five remaining league games this season. Arsenal's best hope of qualifying for European football, next season, however, could lie in winning this term's Europa League, where they face Atletico Madrid in a two-legged semifinal. Sunday saw Arsene Wenger's men suffer a fifth successive away league defeat when they lost 2-1 at Newcastle and Arsenal goalkeeper Cech told the London Evening Standard on Wednesday: "We are in the two competitions, so now need to keep switching between them and do our best. We are in a position now where we must win all our remaining games and hope it lifts us in the table. "We are in a very difficult moment because everybody else has a big advantage.&