AVB was speaking after a meeting of top coaches at the headquarters of European football’s governing body Uefa in Nyon, Switzerland.
He told the Telegraph: “The pressure we were subjected to by the player has been intense.
"The influence of Real Madrid has been very big and you get to a point where you have to consider if it’s feasible not to accept an offer and whether you can press on with a player in that state of mind.
“Obviously, we should be happy with the transfer fee that was paid. Players want to win championships and I believe that with Gareth that is within reach.
"At the end of the day, it’s up to a player to decide if he wants to stay or wants to go.”
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