The 2025 summer transfer window is shaping up to be one of the most intriguing in recent memory, not just because of record-breaking fees, but because of who’s available for free. A number of top players have let their contracts run down, giving clubs across Europe (and beyond) the chance to sign serious talent without paying a transfer fee.

From seasoned veterans looking for one last challenge to stars entering their prime and ready for a new adventure, here are 10 of the biggest free agents in football this summer and where they might end up next.

Jonathan David (Striker, ex-Lille)

Jonathan David has quietly become one of Europe’s most consistent forwards. Over four seasons at Lille, he hit double figures for goals in every campaign and proved himself as one of Ligue 1’s most reliable finishers. Now out of contract, the Canadian international is being monitored by several big clubs. Juventus, Napoli, and Newcastle have all been linked. At just 25, he represents both immediate quality and long-term potential, a rare blend for a free agent.

Kevin De Bruyne (Midfielder, ex-Manchester City)

Kevin De Bruyne leaving Manchester City feels like the end of an era. Despite battling injuries, he still produced moments of magic last season, six goals and eight assists in 40 appearances showing there’s plenty left in the tank. The Belgian maestro is expected to sign with Napoli, where he could thrive in a slower-paced Serie A while mentoring a young, energetic side. A world-class player available for free, it doesn’t happen often.

Dominic Calvert-Lewin (Striker, ex-Everton)

After nine years at Goodison Park, Dominic Calvert-Lewin is moving on. Injuries have disrupted his rhythm, but when fit, he remains a physically dominant striker with Premier League pedigree. Everton’s struggles over the last few seasons haven’t helped his numbers, yet his aerial ability and pressing work rate still make him an attractive option. West Ham, Newcastle, and even Manchester United have been loosely linked with a move. A fit Calvert-Lewin could be a shrewd gamble.

Thomas Müller (Forward/Midfielder, ex-Bayern Munich)

It’s hard to imagine Thomas Müller wearing any shirt other than Bayern Munich’s, but the 35-year-old’s contract expiry brings that possibility closer. While his pace has faded, his intelligence and movement remain world-class. Müller’s leadership and versatility could make him a valuable signing for clubs in Italy or the United States. Expect a team with young attackers to take him on as a mentor and matchday difference-maker.

Thomas Partey (Midfielder, ex-Arsenal)

Once a key figure at Arsenal, Thomas Partey’s final seasons in north London were hampered by injuries and inconsistency. Yet, when fit, the Ghanaian remains a powerhouse, capable of dominating midfields with his physicality and tactical awareness. A move to Serie A or the Saudi Pro League could be on the cards, where the tempo might suit him better and he could recapture his best form.

Sergio Reguilón (Left-back, ex-Tottenham Hotspur)

Sergio Reguilón’s career has been something of a rollercoaster, promising spells at Sevilla and Tottenham, then a series of loan moves that stalled his progress. Still just 28, the Spaniard has plenty of energy and attacking flair from left-back. With experience in both La Liga and the Premier League, he could be a bargain pickup for clubs in Spain or Italy looking for width and pace down the flank.

César Azpilicueta (Defender, ex-Atlético Madrid)

César Azpilicueta continues to defy time. After a decade at Chelsea and a solid season with Atlético Madrid, the Spaniard’s contract is up once more. A consummate professional and leader, Azpi’s versatility across the backline makes him ideal for teams needing experience and stability. Whether it’s a return to Spain, a Premier League swansong, or a move to MLS, his influence in the dressing room could prove just as valuable as his performances on the pitch.

Lucas Vázquez (Winger/Full-back, ex-Real Madrid)

Having spent his entire senior career at Real Madrid, Lucas Vázquez is now free to find a new adventure. Known for his work rate and reliability, the 33-year-old has become one of those players every manager loves, not flashy, but always dependable. He can fill multiple roles on the right flank, from full-back to winger. A move within Spain or to a Portuguese or Turkish club seems likely.

Leroy Sané (Winger, ex-Bayern Munich)

Leroy Sané’s contract situation at Bayern has drawn plenty of attention. When he’s on form, few can match his pace, dribbling, and flair, but inconsistency has been the story of his time in Munich. Still only 29, he’s entering what should be his peak years. Premier League sides like Arsenal and Liverpool have been linked, while PSG could also enter the race if they lose attacking depth. Sané on a free would be a blockbuster move.

Victor Lindelöf (Defender, ex-Manchester United)

Steady rather than spectacular, Victor Lindelöf has been a reliable servant for Manchester United but now faces a new chapter. With his contract up, the Swedish defender offers composure, passing range, and experience at the highest level. Clubs in Serie A or La Liga could find his style of play a perfect fit, particularly those seeking to add depth at centre-back without breaking the bank.

This year’s free-agent market is packed with opportunity. Clubs hunting for value rather than spending power can find proven quality across all positions, from creative midfielders like De Bruyne to future stars like Jonathan David.

The transfer window might be dominated by talk of big-money signings, but history shows that some of the smartest moves are the ones that cost nothing at all. Expect a few of these names to headline the new season, without their new clubs paying a penny in transfer fees.