'The team selection had nothing to do with the transfer market,' Wenger said. 'Why did I start him on the bench? Why not?
'I do not have to justify every decision I make, you know. I have played over 1,000 games and over 1,000 teams.
'I want him to stay this month. I want him to stay for longer because he's a very important player for us.
'When he came on tonight, you could see that he created danger straight away. We have to accept as well when you play so many games and Sanchez plays every game that sometimes a breather in the middle of the season helps a little bit.'