Transfer window 2026: Most undervalued players including Mikey Moore and Rafael Leao

With the 2026 World Cup now over, clubs around the world can resume their pursuit of high-profile targets as attention returns to the transfer market following football's biggest tournament.

As transfer fees continue to rise year after year, finding value in the market has become increasingly important for clubs looking to strengthen their squads without overspending.

In this article, we take a look at five of the most undervalued players available during the transfer window, with all market values taken directly from Transfermarkt.

5) Rafael Leao – AC Milan (Market value: £50m)

Portuguese forward Rafael Leao reportedly wants to leave AC Milan this summer and, despite failing to score more than 10 Serie A goals in each of the last three campaigns, it is unsurprising to see clubs across Europe monitoring his situation.

Having come through the Sporting Lisbon academy, Leao joined the red and black half of Milan in 2019 and quickly established himself as one of Europe's most exciting attackers, winning the 2021-22 Serie A Most Valuable Player award.

More recently, he represented Portugal at the 2026 World Cup, scoring the final goal in their 5-0 group-stage victory over Uzbekistan.

According to Transfermarkt, Leao's market value has dropped by around £40m in recent seasons and currently stands at £50m.

If the 27-year-old can rediscover the form that made him one of the most feared attackers in Europe, potential suitors could find themselves with a bargain on their hands.

4) Nicolas Tagliafico – Lyon (Market value: £4m)

At 33 years of age, Nicolas Tagliafico is the oldest player on this list but still has plenty of experience to offer clubs looking for a reliable option at left-back.

The Argentine defender played the full 120 minutes of the recent World Cup final, where his nation suffered a defeat to Spain in extra time as they missed out on the chance to win football's biggest prize for the second consecutive tournament.

The former Ajax defender has spent the last four years at Lyon, making 103 Ligue 1 appearances and scoring seven goals during his time in France.

Premier League side Nottingham Forest are reportedly interested in Tagliafico and, with a market value of just £4m, the experienced full-back could prove to be an excellent value signing both on and off the pitch.

3) Nestroy Irankunda – Watford (Market value: £10m)

Perhaps the least familiar name on this list, Nestroy Irankunda is a Tanzanian-born Australian international who currently plays for Watford.

Previously on the books at Bayern Munich, the winger has already made a significant impact at international level, scoring six goals in 19 appearances for the Socceroos, including Australia's opening goal of the 2026 World Cup against Turkey.

The forward joined Watford on a five-year contract just over a year ago and went on to score four goals during his first season in the Championship.

With his reputation continuing to grow, interest from clubs including Everton, Bayer Leverkusen and Sporting Lisbon is unsurprising, and his current £10m valuation could represent a major opportunity for potential suitors.

2) Felix Nmecha – Borussia Dortmund (Market value: £55m)

Felix Nmecha was one of Germany's standout performers during the 2026 World Cup, scoring his country's first goal of the tournament in what was ultimately a disappointing campaign for Julian Nagelsmann's side.

His performances have unsurprisingly attracted further interest, with clubs including Real Madrid and Manchester United reportedly keeping a close eye on the Borussia Dortmund midfielder.

Born in Hamburg but developed through the Manchester City academy, Nmecha has earned 12 caps for Germany while making an impressive 75 league appearances for Dortmund across the last three seasons.

His current market value stands at £55m, although that figure could rise significantly in the coming months, particularly if further interest arrives from Europe's biggest clubs.

1) Mikey Moore – Tottenham Hotspur (Market value: £18m)

Mikey Moore enjoyed a breakthrough season during his 2025-26 loan spell at Rangers, where the 18-year-old featured 47 times across all competitions, scoring seven goals and quickly becoming a fan favourite at Ibrox.

The winger has been linked with a potential return to Rangers this summer, while European clubs including Borussia Dortmund, PSV Eindhoven and FC Koln are also reportedly monitoring the English forward.

However, any serious interest from continental sides could end hopes of Moore returning to Scotland for another season.

The winner of the 2025-26 PFA Scotland Young Player of the Year award may feel his future lies away from Tottenham if he does not feature prominently in Roberto De Zerbi's plans.

With his current market value standing at just £18m, Moore could represent a significant opportunity for clubs looking to secure one of Europe's most exciting young talents.