Viktor Gyokeres has been linked with a move to Manchester United in the past few transfer windows but they were unable to bring him over to the club.
Ruben Amorim spent four years at Sporting Lisbon and was key in helping develop Gyokeres into one of the best strikers in the world during that time, though he has now departed for United.
The Portuguese is getting ready for his first game in charge of the club against Ipswich Town.