Manchester United striker signing Manucho Goncalves must wait to make his European debut.
The 24-year-old signed a three-year deal at Old Trafford from Angolan side Petro Atheltico after impressing on a three-week trial in December but because of work-permit issues in the UK he was immediately sent to the Greek outfit on loan for the rest of the season.
Manucho enhanced his reputation as a rising star in football with a dynamic display of goalscoring in the Africa Cup in Ghana.
He scored the opener in Angola's first game against South Africa last month and struck a further two against Senegal in a 3-1 win.
A goal followed in the 2-1 loss to eventual winners Egypt although his 25-yard effort has been described as the goal of the tournament.