Erling Haaland emerged as a teenage sensation, but has warned the Bundesliga there is an even more prodigious young talent ready to break through at Borussia Dortmund.
Norwegian striker Haaland turned 20 in July and has already established himself among the top marksmen in German football.
His 13 goals in 15 Bundesliga games since arriving in mid-season from Red Bull Salzburg came amid a overall tally of 44 goals in 40 appearances, split between the two clubs.
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Haaland will be Dortmund's chief goal threat in the new campaign, but youngster Youssoufa Moukoko could also have a part to play.