Russia boss Dick Advocaat does not believe Arsene Wenger is getting the best out of Andrey Arshavin at Arsenal.
Advocaat managed the Russia star at Zenit St Petersburg, including scooping the domestic title in 2007 and Uefa Cup in 2008.
Arshavin then secured a big money switch to the Gunners in January 2009, but he has since not set the Emirates alight on a consistent basis.
The 30-year-old is used as a box-to-box player or an impact substitute and Advocaat believes this does not suit his style of play.
The Dutch tactician told the Daily Mirror: "One of his problems is that he plays 20 minutes per game.
"Arsene Wenger uses him as a player who can be fielded in the second half and who can refresh the game.
"Andrey is showing willingness to give the team the best of what he has. I worked with him for over two years at Zenit and I know who he is.
"Expecting from him 90-minute running means not knowing and not understanding Arshavin."
Despite knowing Arshavin well, Advocaat denies this leads to any special favouritism when it comes to selection for the national side.
He added: "We have no 'special relationship' - none of that. Do not think Arshavin is fielded just because he is Arshavin.
"I respect him as a player and a person.
"But if we find anyone better than Arshavin to replace him, this anybody will play instead of him."