#5 Gelson Martins (Sporting Clube de Portugal)
Martins is a 22-year-old Portuguese winger who really blossomed last season as he scored 7 and further assisted 13 in 44 appearances.
According to reports, the German club is extensively scouting him as the hierarchy view him as a natural heir to Robben.
They are confident that they tempt the winger to switch to the Bundesliga if Sporting is willing to negotiate a deal.
His playing style is very much like a classic winger as he is good in one on one situations capable of going past players and delivering a good ball inside the box.
Martins' main strengths are his pace, trickery, dribbling skills and passing. He also capable of playing on both the wings. The Portuguese winger also contributes defensively as well, his 1.8 tackles per game are a proof of that.
At the age of 22, he has plenty of time to improve and develop his game further up. The fact that the German club interested in the winger despite his £53.5 million release clause is indicative that he is seen as being a quality player.