Aston Villa have announced the arrival of Scott Hogan from Championship rivals Brentford.
The striker has signed a four-and-a-half year deal at Villa Park.
Hogan said: "I’m delighted to be at a club like Aston Villa.
“With its history and tradition I can’t wait to start working hard and helping the team.
“It all happened quite quickly and now I'm looking forward to meeting my new team-mates tomorrow and beginning a new chapter in my career."
Serbian international Branislav Ivanovic has ended his eight-year association with Chelsea by completing a move to Zenit St Petersburg.
Mamadou Sakho has departed Liverpool in order to complete a move to Crystal Palace on loan for the rest of the season.
Southampton have signed striker Manolo Gabbiadini from Napoli in a deal worth a reported £17million.