Shane Long has completed a switch to Southampton, signing a four-year deal just seven months after leaving West Brom to join Hull City.
The Republic of Ireland striker moved to the KC Stadium in January, for a fee reported to be in the region of £6million.
However, after scoring four goals in 15 league appearances for Steve Bruce's men, Long has been snapped up by a Southampton side eager for reinforcements following the departures of several star names.
While the fee paid for Long has not been disclosed, the south-coast outfit are reported to have parted with £12m for the 27-year-old.
Southampton boss Ronald Koeman expects Long to complement another of his close-season signings, Graziano Pelle.
"Shane is a very good player. As a striker, he's different to Graziano Pelle, which is something we needed," Koeman told Southampton's official website.
"He brings ambition and a great mentality - he's always running and always working, and he's very down-to-earth. He's a great person, and we need that type of player.
"He brings a lot of experience to our squad because he's already played at Premier League level for a few years. He knows what we need at this level, and he can show that to our younger players as well."
Long revealed he had been surprised by initial news of Southampton's interest.
"I'm delighted. This came out of the blue for me but once I'd come and had a look at the training facilities and met the manager, it seemed like the right decision for me and my family," he explained.
"It was a hard decision for me to make, but when you come down to Southampton you see how big a club it is and how well set up it is.
"In theory it's a very good move for me, but all the hard work starts tomorrow when I get on the training pitch because I have to prove my worth."
Earlier on Thursday, Hull boss Steve Bruce acknowledged his club had little option but to sell when offered the chance to make a healthy profit on Long.
Bruce told the Hull Daily Mail: "We'd not been looking to sell Shane but it's a fantastic offer and we've decided to accept it.
"The challenge is always to become bigger and better and this money will be put towards strengthening again.
"Whether you are Cristiano Ronaldo or Lionel Messi, everyone in football has got their price.
"Myself and the owners didn't want to lose Shane but we accept it's a very good offer, especially when you consider what we paid in January."
|Ibrahimovic: United fans are waiting for me|
|Deulofeu shines for Everton, Cook opens Bournemouth account|
|Higuain out to emulate Del Piero|
|Kante does his talking on the pitch - Conte|
|Mourinho explains Fosu-Mensah snub|
|Klopp: No more unwanted players at Liverpool|
|Inter want more than €60m for Icardi - Thohir|
|Leicester can replace Kante - Ranieri|
|Lazio complete Wallace signing|
|Gueye set to join Everton, confirms Di Matteo|
|Tuchel: Transfer market has gone cash crazy|
|Leicester hand King new four-year deal|
|No deal done for Pogba, says Raiola|
|Rooney: Mourinho impact already huge|
|Lafferty hit with FA betting charge|
|Top-four finish never enough for Arsenal, insists Wenger|
|Partey hoping to make his mark on Atletico squad|
|Ibrahimovic in, Schweinsteiger out as United head for Galatasaray friendly|
|Vietto set for Sevilla after completing medical|
|I rejected Besiktas to fight for Barcelona spot, reveals Mathieu|
|De Laurentiis fumes at Higuain´s ´lack of respect´|
|Promising Janssen boosts Tottenham´s title hopes|
|Besiktas sign Adriano on three-year contract|
|Tottenham 0 Atletico Madrid 1: Godin grabs the winner|
|Gomis completes Marseille loan move|
|Iniesta surprised at Casillas-Del Bosque spat|
|New Juve signings do not guarantee success - Allegri|
|New Juve signings do not guarantee success - Allegri|
|Middlesbrough snap up goalkeeper Guzan|
|Guardiola still loves Ribery despite jibes|
|West Ham worry over Tore injury|
|Serie A could be another one-horse race, says Eriksson|
|Schweinsteiger retires from Germany duty|
|Iniesta welcomes Barca´s midfield competition|
|Drogba: No luck in Arsenal scoring record|
|Wenger seeks ´experienced´ striker to bolster Arsenal attack|
|Eriksson and Shanghai SIPG still fighting|
|MLS All-Stars 1 Arsenal 2: Premier League giants win late as Xhaka makes debut|
|Conte: I want aggression and intensity|
|Wimmer backs physical Janssen for Tottenham success|
|Klopp: I wouldn´t spend £100m on one player|
|Sampaoli: Taking Argentina job would be irresponsible|
|Payet absence no excuse - Noble|
|Gabriel Jesus expects Palmeiras exit amid Manchester City rumours|
|Domzale 2 West Ham 1: Crnic double stuns Bilic´s side|
|Juventus target Gabriel Barbosa says Santos exit is close|
|Leicester duo ready for ´once in a lifetime´ Champions League journey|
|Fabregas apologises for Klavan lunge|
|Reschke: Guardiola wanted Tuchel to be his successor|
|Pochettino expecting further Tottenham signings|
|Given retires from international football|
|Abdi and Pudil swap Watford for Wednesday|
|Leicester sign Chilwell to new five-year deal|
|Klopp pre-season ´most intense ever´ for Sturridge|
|Simeone backs Griezmann for Ballon d´Or final three|
|Puskas Award winner quits football - to become a gamer|
|Simeone: Champions League final felt like a death|
|Higuain: I have to prove my worth to Juventus|
|Guardiola confirms interest in Sane and Stones|
|Moreno set for Manchester City switch and Deportivo loan, claims agent|
|De Laurentiis pushed me into Juventus move - Higuain|
|Savic seeking to put injury woe behind him|
|Borussia Dortmund 1 Manchester City 1 (5-6 pens): Gunn´s shootout saves earn Guardiola first win|
|Oblak: Atleti need consistency and luck|
|Warburton rubbishes Van Persie rumours|
|Hospitalised Grujic ´can´t remember anything´, says Klopp|
|Premier League, Serie A appeal to Simeone|
|Copa Libertadores success ´a dream´ for Borja|
|Pochettino honoured by Simeone comparisons|
|Argentina have not asked for Sampaoli - Monchi|
|Ancelotti: Fitness the key for Bayern|
|Bayern win ´a small foundation´ for Montella´s Milan|
|Icardi missing due to injury - Mancini|
|Emery satisfied with warm-up win over Madrid|
|Conte quiet on Tevez, apologises for Fabregas red|
|´It was far from a friendly´ - Klopp on Chelsea defeat|
|Madrid off the pace, concedes Zidane|
|Chelsea 1 Liverpool 0: Cahill´s header seals win|
|Grujic says Chelsea´s Matic told him to sign for Liverpool|
|Bolasie wants to see Berahino and Benteke at Crystal Palace|
|Rodgers hails ´outstanding result´ as Celtic draw|
|Walcott claims level of MLS is close to Premier League|
|Bayern Munich 3 AC Milan 3 (3-5 on penalties): Bonaventura seals win|
|Atletico Nacional 1 Independiente del Valle 0 (2-1 agg): Borja secures Copa Libertadores crown|
|Icardi absent again as Inter held by Estudiantes|
|Real Madrid 1 Paris Saint-Germain 3: Zidane oversees poor pre-season start|
|Hazard vows to rediscover best Chelsea form|
|Klopp reveals why he sent Sakho back to Liverpool|
|Tevez: Conte wanted me at Chelsea|
|Sunderland hopeful Defoe will be fit for Man City opener|
|Sundowns overcome Zamalek to book semi-final spot|