Wenger, meanwhile, revealed the Gunners were forced into a late change when Mesut Ozil became unwell, whisking Ainsley Maitland-Niles up the motorway for an unexpected appearance on the bench. That's what we did, ' said Wenger, whose side host Huddersfield on Wednesday.
The Sanchez penalty - accepted, albeit through gritted teeth, by manager Sean Dyche - was the first goal conceded by Burnley in 375 minutes.
Wenger has come under fire at The Emirates in recent seasons after failing to guide Arsenal to the Premier League title since their famous unbeaten triumph in the 2003-04 campaign. "We had to get more out of ourselves in the second half and I think we did that much better". He wasn't the only Arsenal man to find the going heavy against a Burnley side which has become adept at frustrating the opposition while also offering options going forward. Our defence worked well again and we were relentless in the second half. "I can understand if they are disappointed but from the outside it looked a penalty".
'For us, after the win against Tottenham, it was very important to go away from home, play a hard game and win. "They cross very well and up front they have some players who can score headers, so it was very hard".