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Musiala scored twice on his first start of the season as Bundesliga champion Bayern put 12 past its helpless fifth-tier opponent at the Weserstadion on Thursday (AEST).

The 18-year-old brilliantly executed a neat one-two with four-goal star Eric Maxim Choupo-Moting for his opener, while rifling home a 20-yard thunderbolt for his second just after half-time.

Germany sensation Musiala carried a constant threat with his pace and ball retention down the right flank, and would have claimed a hat-trick had his goal-bound first-half shot not been turned over his own line by Jan-Luca Warm.

Bayern head coach Nagelsmann is certainly excited by what the academy graduate has to offer.

"Jamal is incredibly good in possession, but there's more to him," Nagelsmann told the official club website post-match after Bayern secured their second-highest winning margin in all competitions since their promotion to the Bundesliga in 1965 – they defeated DJK Waldberg 16-1 in the DFB-Pokal.

"There's a lot of potential in Jamal. The way he handles the ball; it does seem as if he has magnets in his boots. 

"He's got great quality. No doubt, this is a very talented 18-year-old."

Nagelsmann also hailed the performance levels of Leroy Sane, who scored a goal for the German giants and provided seven key passes including two assists.

One of four survivors in a much-changed side from Sunday's win over Cologne, the former Manchester City attacker also successfully completed 30 of his 38 attempted passes.

"He was super involved; he defended extremely well and scored a goal," Nagelsmann added.

"I think he could have scored three more if other players had passed the ball to him; he was in a very good position several times. 

"What some people accuse him of doing is not going to the limit, but today it was really obvious that he went to the limit. He gave it his all and I'm super happy."