West Brom have signed Poland international Kamil Grosicki from Hull.
The winger, who has seven goals and five assists already this season, has signed an 18-month contract at The Hawthorns.
Grosicki has earned 73 Poland caps and featured for his nation at the World Cup in 2018.
West Brom sporting and technical director Luke Dowling said: "Kamil is one of the most consistent players I have seen. He's always a seven out of 10 guy who will give you a nine as well.
"He's exactly the type of player we want to be adding at this stage and as soon as he heard of our interest, there was nowhere else he wanted to come.
"He's got great experience and is still an important member of his national squad with the Euros ahead in the summer."
Grosicki joins the Baggies alongside Callum Robinson, who arrived at the club on loan from Sheffield United earlier this week.
Hull are also set to lose top goalscorer Jarrod Bowen, with the winger set to join West Ham after a £20m fee was agreed.
Tigers boss Grant McCann is aiming to bring in Peterborough midfielder Marcus Maddison on loan to replace the outgoing wingers.