Gerrit Holtmann has made the move to 1. FSV Mainz 05 for an undisclosed fee, the club announced on Tuesday.
The Eintracht Braunschweig talent is heading to the Rhineland-Palatinate on a four-year deal, and will be looking to continue his rapid rise to the top.
Regionalliga to Bundesliga in a year
After beginning at Werder Bremen, he found himself at OSC Bremerhaven before making the leap to the Regionalliga and Braunschweig's reserves.
The 21-year-old made a big impression in the fourth tier, scoring 10 times and assisting a further four goals in what was a very successful 2014-15 campaign.
That earned him a debut towards the end of the season, before becoming a fixture in the first-team throughout the 2015-16 2. Bundesliga.
Six goals and five assists in 32 games were enough to spark interest from multiple Bundesliga teams, though he decided to make the move to the Carnival Club.
Holtmann now becomes Mainz's third signing of the summer, following on from making Jhon Cordoba and Christian Clemens' moves permanent.
Schmidt, Schröder and Holtmann have their say
All three of the most interested parties in the deal gave their thoughts on the move to the official club website.
Martin Schmidt said: “Holtmann is exactly the right type of player for Mainz. He is young, hungry, fits in with the team dynamics and his style of play matches perfectly ours."
Rouven Schröder added, “He is a young German attacking talent with immense potential. We're really looking forward to him taking the next steps in his development here.”
With words of praise ringing in his ears, Holtmann also spoke very highly of the club and what lies ahead.
He concluded, "Mainz 05 gave me the feeling that I could achieve my sporting targets and take the step up into the Bundesliga in a great environment."