Newcastle United boss Eddie Howe admits Financial Fair Play could limit their January market plans.
Howe will hold a transfer meeting with sporting director Dan Ashworth and co-owners Amanda Staveley, Mehrdad Ghodoussi and Jamie Reuben in Saudi Arabia this week, as they prepare for the New Year window.
He told the Daily Mail: "As a manager, I am always looking to improve the team. I will never sit here and be content - I don't think that is the right way to manage.
"My way to take the team to new heights is to improve through the training of the players we have. If we can't get to a certain level, then we need to find that in the transfer market.
"In my position, you are keen to sign the best players you can - but those players come at a premium. Botman wasn't cheap, Alex Isak (£60m) wasn't cheap. Those are players who can influence the starting XI.
"Do we have the finances for that? I do not know. That might impact our options. It is a considerable outlay the club have to find and with FFP, I'm not sure that's available to us. You have to work within the guidelines of the club."
