Arsenal head coach Arsene Wenger believes that the decision to leave striker Alexis Sanchez was expensive for his club.

On the last day of the transfer window, the Chilean striker could move to Manchester City, but the "Gunners" decided to leave the player for another season.

The current Sanchez contract with the club expires next summer, and given his desire to leave Arsenal, Alexis may leave at the end of the season for free.

This fact worries the head coach of Londoners Arsene Wenger.

"When we left Sanchez for the last year of his contract, we sacrificed 70 million pounds".

"At the end of next season we will also have to buy a player for about the same amount".

"Therefore, the price of what Sanchez remained was too great. At some point you need to make a difficult decision and sacrifice one or two players, "- said Arsen.

Earlier it was reported that the next summer Alexis Sanchez can sign Real Madrid.