Griffiths has already scored 28 times for Hibs during his season-long loan, made his Scotland debut, and earned the Clydesdale Bank Scottish Premier League player of the year award. He will be in the Scotland squad for the World Cup qualifier in Croatia on June 7. It was a campaign troubled by off-field issues, though. In January he was criticised by parent club Wolverhampton Wanderers for using racist language in a tweet. He was also charged with shoplifting and faces trial in August.