Southampton have announced the signing of striker Charlie Austin from Championship side QPR.
The 26-year-old has penned a deal until 2020 with Ronald Koeman's side after an undisclosed fee was agreed with reports suggesting it is in the region of £4million.
QPR director of football Les Ferdinand said in a statement: "It's no secret that Charlie is out of contract in the summer so this is a decision made in the best financial interests of the club.
"Charlie has had a significant impact on this football club in his time here and we are hugely grateful to him for his contribution during his spell with us.
"Whilst we are sorry to lose Charlie, once he expressed an interest in moving to Southampton, we could not stand in his way.''
The forward leaves Loftus Road after scoring 48 goals in 89 appearances following a switch from Burnley in August 2013.
Austin has managed nine goals in 16 appearances so far this season despite battling hamstring injury problems.
Koeman had admitted last month that he could be tempted into the January transfer market due to injuries to attacking duo Jay Rodriguez and Graziano Pelle.
"These are two strikers, two good players and if we don't have them back maybe that's a question to sign a new striker, but not other positions in the team. We have enough competition and I'm pleased with the rest of the squad," he said.