Southampton set for surprise 2026 transfer windfall from upto 5 former players

A detailed look at how Southampton could benefit from the oncoming transfer windfalls on up to five former Saints.

For good reason, Southampton are known as one of the finest talent producers in English football. Having sold numerous star players to top clubs over the years, the club has accumulated impressive profits from player sales.

This summer is expected to be no different, with several Saints, including Shea Charles, linked with Big Six moves. To Southampton’s surprise, their profits could grow further from sell‑on clauses on former players, in addition to direct summer sales.

Here’s a comprehensive look at each former Saint through which Southampton can receive a transfer windfall this summer:

Mateus Fernandes

Mateus Fernandes bid farewell to Southampton last summer by completing a move to West Ham for a £38m fee that could rise to £42m with add‑ons.

While that represented an impressive profit for Southampton on their £15m investment in the midfielder just a year earlier, the Saints played it smart by inserting a sell‑on clause in Fernandes’s West Ham contract.

According to the terms, Southampton could receive around 15% of the profit West Ham makes on any potential sale of Mateus Fernandes. Having been a bright spot for the Hammers in their 2025/26 relegation season, Fernandes is now being linked with a headline‑worthy move to Man United.

Should the Red Devils sign the former Saint in a hefty deal, Southampton could receive up to £4‑5m in an impressive financial windfall.

Max Alleyne

Alleyne is en route to becoming another Southampton prodigy to make it big in English football. The centre‑back’s rise was so impressive that Manchester City signed him from Southampton at just 15 years old in the summer of 2021 for a fee of £1.5m.

Fast forward to 2026, and Alleyne’s market value has soared to an impressive €8.00m, according to Transfermarkt. Following the 20‑year‑old’s Premier League debut with Manchester City and a decent loan spell in the Championship with Watford, Alleyne has been making rapid progress.

Notably, Southampton still hold a staggering 20% sell‑on clause for Alleyne. Although Manchester City have shown reluctance to let him go this summer, any loan move could see the centre‑back’s value rise further.

Should Alleyne secure a sensational move from Manchester City in the future, Southampton will receive a sizeable chunk of the windfall due to their 20% entitlement share on the player’s transfer fee.

Dom Ballard

Dom Ballard’s case has been quite interesting to follow for Southampton and their fans. After the club finalised his permanent sale to Leyton Orient in 2025 following some decent EFL loans, Ballard has really hit the ground running at Leyton.

Despite his side finishing in 20th position in League One, Ballard stood out for his superb 23‑goal league campaign for the club. Not only did it make him the League One top scorer in the 2025/26 campaign, but his performances have also generated suitable Championship interest.

Given Southampton’s enormous 20% sell‑on clause for the forward, the Saints are likely to receive a massive windfall should a suitor meet Leyton’s £15m asking price for Ballard. While that alone could take Southampton’s profit on Ballard up to £3m, a section of supporters are eager to see the club welcome him back at St. Mary’s.

While Southampton are certain to benefit from Ballard’s overall situation, it remains to be seen whether the club could give him a first‑team chance to shine at St. Mary’s following his impressive Leyton spell.

Tino Livramento

Newcastle full‑back Tino Livramento remains one of the most notable cases where Southampton’s early scouting and development plans saw them churn in a massive profit from a non‑academy graduate.

Having signed Livramento from Chelsea for a £5m fee in 2021, the Saints fast‑tracked his development through first‑team opportunities and sold him for a staggering £32m fixed fee to Newcastle in 2023.

While such a profit is handsome enough, the Saints could still extract further windfall from Livramento’s potential sale. With Southampton reportedly having a sell‑on clause on the full‑back, they could be entitled to a small share of the profit Newcastle can make on Livramento’s departure.

Notably, Livramento came incredibly close to joining Manchester City for a £65m move last year. While those talks fell through, the player’s links to Arsenal could still see Southampton benefit from the former Saint’s Newcastle departure.

Juan

The final name on this list is of Goztepe centre‑forward Juan. The Brazilian has been one of the most positive success stories of Sport Republic’s multi‑club ownership model that could benefit Southampton.

The Saints signed Juan from São Paulo in the summer of 2024 and soon sent him on loan to sister club Goztepe. A successful campaign of seven goals for the forward in the Süper Lig saw Southampton sanction his permanent move to Goztepe while retaining a sell‑on clause for his future sale.

Notably, Juan scored 11 goals in the 2025/26 campaign and made his way among the top ten goal scorers in the Süper Lig. What’s more impressive is that Goztepe swiftly rejected a €15m offer for Juan in the winter window, and should the forward continue his form, Southampton could be in for a considerable windfall when he eventually departs the Süper Lig.