Alexander Isak has been training alone in Spain at former club Real Sociedad

Newcastle United manager Eddie Howe says the transfer situation surrounding striker Alexander Isak is "complex" and "far from ideal".

Newcastle turned down a £110m bid from Liverpool for Isak on Friday, with the Magpies valuing him at about £150m.

The 25-year-old was left out of Newcastle's pre-season tour of Asia with what the club described as a "minor" thigh issue.

The Swede has since been training alone at former club Real Sociedad - something Howe said he found out about through the media.