Guerra has been linked with Manchester United for several weeks, with some reports suggesting that the club has already agreed on a long-term contract with the player. However, it has been recently reported that Guerra has turned down a new contract offer from Valencia, which has only strengthened the rumors of his potential move to Manchester United.

Manchester United is in need of a midfielder like Guerra, who has a strong track record in La Liga. The club recently lost Christian Eriksen, and Guerra's skills could fill the gap. Valencia is also facing a challenge in retaining Guerra, as the club has already lost Christian Mosquera to Arsenal.