Luca Erlein, a 19-year-old central defender who was loaned from Bayer Leverkusen to Energie Cottbus in the summer, is impressing coach Claus-Dieter Wollitz with his performances in the 2nd league and has already been nominated for the U20 national team, while his market value has risen to 3 million euros. #LucaErlein #EnergieCottbus #BayerLeverkusen (translated)