One of these free agents is Jamie Vardy, a skilled striker who has played in the Premier League for many years. He is now 38 years old and is looking for a new club after deciding not to renew his contract with Leicester City. Another free agent is Dominic Calvert-Lewin, a talented young striker who has played for Everton. His contract with the club has ended, and he is now searching for a new team to play for. The third free agent is Callum Wilson, a seasoned striker who has played for Newcastle United. He is now 33 years old and is looking for a new club after his contract with Newcastle ended.

Manchester United has already spent £65.7 million on new players this summer, including Matheus Cunha and Diego Leon. However, the team's manager, Ruben Amorim, is still looking for a new striker to replace Rasmus Hojlund and Joshua Zirkzee. These two players are young and talented, but they lack the experience of Vardy, Calvert-Lewin, and Wilson.

Although Manchester United is known for making cost-effective moves, it seems unlikely that they will sign Vardy, who will be 39 years old next year. Wilson is also older, turning 34 next year. However, Calvert-Lewin is still relatively young and is the most likely of the three free agents to join Manchester United.