Nigeria striker Anthony Ujah, the top scorer in the ongoing Norwegian league, has signed for German club Mainz.
The 20-year-old signed a four-year deal and cost the German side US$4.3 million from Lillestrom.
The Nigeria under-23 star has scored 13 goals in 12 matches this season, including four goals each against Stabæk and Strømsgodset.
"I'm happy for this major step in my career," Ujah, who has spent just 16 months in Norway, told BBC Sport.
"I thank both Lillestrom and Mainz for making a dream come true for me.
"I read about several interested clubs but the Mainz coach (Thomas Tuchel) gave a positive impression from the very moment I first spoke to him.
"In football, there are many things that are more important than money and some of these things Mainz appear to have."
A free scoring forward, Ujah began his professional career at Nigerian side Warri Wolves before joining Lillestrom in February 2010 on a four-year contract.
He ended up scoring an impressive 32 goals in 42 appearances during his short time at Lillestrom.
Mainz beat off competition from the likes of Danish giants FC Copenhagen, Brondby as well as clubs in France, Holland, Russia and Ukraine.
"I want to develop as a player in Europe and Mainz has the perfect platform for me," added Ujah.
"They have a remarkable and exciting youth set-up and as a footballer keen to improve I see this club as the right one for me.
"I hope to learn, get better and hopefully prove to the club that they have invested well in a striker.
"With Mainz my game will get better for club and country. I'm excited this is done."