The 44 - year - old former AC Milan, Juventus, Lazio and Celtic striker had been incensed earlier this month after the club's best player Matt Ritchie was sold to
promotion rivals Bournemouth for # 500,000 on transfer deadline day.
Bournemouth took a massive step towards the Premier League, after Harry Arter's bullet put them 2 - 0 ahead against
promotion - chasing
rivals, Middlesbrough at the Goldsands Stadium.