After completing a £7 million move to Hull City from West Brom last January, the nomadic Irishman is now set to join Southampton, after agreeing a £12 million fee with the Tigers.
Although Long's fledging Hull career is about to end, it's not all 'doom and gloom' however, as the Yorkshire club will receive a £5 million profit.
Assuming that their chairman, Assem Allam, will reinvest this profit into the club, Steve Bruce will have a bigger war chest to recruit a quality replacement for the proven goalscorer.
These are just a few potential replacements for the former Reading striker.
Highly-sought after by a number of Premier League clubs - Leicester and Burnley both had bids rejected - the Watford striker has established himself as one of the finest Championship strikers.
Having scored 58 goals in 164 appearances for Watford, Deeney has become known for his supreme strength, hold-up play and finishing. He also finished as Watford's top scorer last season - netting 25 goals.
These are just some of the qualities that have interested the Hull manager, and have convinced him that he could become a proven Premier League player.
Only 23 years old, the Liverpool player had an impressive 2013/14 campaign on loan with Sunderland, with his seven goals helping fire the Wearside club to Premier League safety.
Possessing a powerful shot and quick feet, Hull's management team believe that the Italian would forge a fearsome partnership with their Croatian striker, Nikica Jelavic.
However, Sunderland have already agreed a £14 million fee with Liverpool for his services, but a move has yet to materialise. So Hull will need to act quickly if they are to secure his signature under Poyet's nose.
Revitalised under Gus Poyet, the 21-year-old striker flourished towards the end of Sunderland's previous season, where his goals arguably snatched his club from the jaws of relegation.
However, according to Poyet, Wickham was told to sign a new-and-improved contract, or he would be sold. Since the tall Englishman has seemingly delayed his decision, this would provide a great opportunity for Bruce to snap up the talented youngster.
For someone so young, he is stronger than most of those beyond his years, and he can either play as a lone striker or in a partnership.
This means that he has plenty of potential for someone like Bruce to extract from him, and could see him fire Hull to European football for the second time running.
Voted 'Championship Player of the Year' in March 2014, the lightning-quick striker was Burnley's main source of firepower as they clinched automatic promotion - returning them to the summit of the English football pyramid.
A well-rounded player who is so young, Ings would in many ways, be the perfect replacement for Shane Long. Similar in style, but five years younger, Ings would not only be cheaper than Long, but he could also become a much better player.
Contrary to this, Burnley manager, Sean Dyche has said that the England U21 international would definitely be staying at the Lancashire-based club for the incoming season.
Therefore, Bruce would need to dig deep into his pockets to stand a chance of persuading Dyche to part with his star player.
The Costa Rican should be on a high, having returned from a highly impressive World Cup for both himself and his country - seeing his reputation soar as one of the World Cup's most exciting prospects.
The 22-year-old was on loan from Arsenal to Olympiakos for the 2013/14 season, where he notched eights goals in 32 games for the Greek side, as well as putting in a series of impressive performances.
Eager to fight for his Arsenal spot, it would be far easier for Bruce to negotiate a loan deal, rather than splashing out a significant fee for a relatively unproven player. Also, Wenger views Campbell as a future regular, so a loan deal would suit both parties.
Nevertheless, a loan deal for Campbell would carry no risk, as even if he doesn't perform well, no money would be wasted. But he does have the technical and physical attributes to be one of the signings of the season. Fast, direct and very energetic, the young striker could give many defenders nightmares throughout the season.