Arsenal suffered a huge blow to their title chances when they were beaten by Swansea 2-1 at home. Joel Campbell opened the scoring for Arsenal but goals from Wayne Routledge and Ashley Williams turned the game around for Swansea.
Arsenal hit the woodwork three times with Sanchez himslef striking the woodwork twice. The Chilean said that Arsenal needed to change their outlook if they wanted to win the Premier League.
"We lack self-belief that we can actually be champions," he told DirectTV sports.
"I think we can win the Premier League with the players we have. That said, we lack a certain hunger. We need to step out onto the pitch as if we're already 1-0 up.
"I remember a game against Manchester United last year. The lads looked hungry for silverware as we took to the pitch.
"We crushed them in the first 20 minutes and went 3-0 up. We were hungry and brimming with confidence that day."
Swansea captain Williams, who said his side's win was "massive," added: "We seem to enjoy coming here for whatever reason.
"We can go and beat a team challenging for the title, so we can beat anyone on our day."
Paul Scholes slams Arsenal’s mental toughness
Arsene Wenger feels his side were unlucky in the defeat against Swansea as their title hopes suffered another blow
“I think it is a very unlucky defeat It's a very disappointing game, and the players are very down. But we have to respond to that. So at the moment we don't dream. We have to be realistic and come back to what we do well, and do the basics”
On Petr’s Cech's injury, he said,
“Cech got a muscular problem at the end of the game. He will not play on Saturday. I have full faith in Ospina”
Paul Scholes slammed arsenal’s performance raising concerns on their mental toughness on BT Sport
“Arsenal, you know this season I think I was a little bit conned by Arsenal.”
“I thought this year they'd added a bit of steel with Cech and Ozil was coming into his own and I had a slight feeling that they might go on to win it but once again they haven't disappointed.”
“They always seem to when it comes down to the crunch”