High Expectation: Theo Walcott: More to come from Alexis Sanchez

The treble was also a fourth for Wenger’s Arsenal against Leicister, they’ve become the opponent that Arsenal have scored hat tricks against most often since 1996.

“I’m sure that now he has scored – he’ll soon be back to his very best”.

The goal-scorer then hit the crossbar with a header five minutes later. But Theo Walcott equalised within minutes after Leicester were caught on the break.

Arsene Wenger’s side, playing in their 18th consecutive campaign, host the Greek champions on Tuesday as they look for their first victory in Group F. They were finally rewarded for their efforts in the 32 minute when Alexis Sanchez put them in the lead with a shot from close range. It’s always a great team.

This is the first weekend of the year when I’m forced to wait on lineups to be released before I can make my mind up on certain fixtures. Every match is my biggest challenge – this is my philosophy.

“He charges all of his team-mates because when you see your striker go to press everybody feels good“.

“There’s disappointment in the dressing room and we need to get back onto the training field and focus on Norwich”.

And Ranieri refused to be downbeat following the Foxes’ first defeat of the season.

Arsenal will be without defender Gabriel, who will be serving a one-match ban for improper conduct.

The FA responded by suspending Costa for three games. Costa had been accused of shoving his hand into the face of Arsenal’s Laurent Koscielny.

Gunners forward Sanchez inspired a 5-2 win at Leicester on Saturday that, combined with Manchester City’s defeat at Tottenham, left Wenger’s men just three points behind new leaders Manchester United. “It was very hard after that”.

“It was important because it was a derby”.

“You have to win your home games if you want to qualify from the group stage, it is simple as that”. Arsenal trio Jack Wilshere, Tomas Rosicky and Danny Welbeck are all out through injury.

The Gunners boss would not rise to Mourinho’s latest jibe after seeing his side’s 5-2 win at Leicester.

That loss leaves little margin for error against the Greek side so the pressure will be on Walcott if Wenger once again deploys him as Arsenal’s lone central striker.