Victor Valdes and Pep Guardiola could be ready for a reunion at Manchester City. Getty.

Manchester United keeper Victor Valdes could make a sensational return to the Premier League in the summer to play under his former Barcelona boss Pep Guardiola at Manchester City, according to Sport. The Spanish publication points out that the goalkeeper was a crucial asset for the Spanish manager during his successful spell at Barcelona and could now take advantage of his contract situation at Old Trafford to reunite with him at the Etihad Stadium as a free agent.

The 34-year-old goalkeeper signed 18-month deal with Manchester United with the option to extend it for a further year in January 2015, having been recovering from a serious knee injury at the club training ground. However, his spell at Old Trafford became a nightmare after falling out with Louis van Gaal, being forced to train apart from the first-team since the summer before being sent on loan to Standard Liege in the January until the end of the season.

Valdes' 18-month contract is due to expire in the summer but with van Gaal's future at the club uncertain the Red Devils may opt to exercise to exercise their option to extend it one further season, with El Pais recently revealing the club have until 30 May to make a final decision.

Sport now reports that Guardiola is monitoring the situation ahead of reuniting with his former Barcelona star at Manchester City, as should they opt against his renewal he will be free to negotiate his departure to any other club.

The Spanish publication noted that the pair enjoy a close relationship since their time together at the Camp Nou, with Valdes being a favourite due to his special ability to play the ball at his feet. Guardiola is well known for his tiki-taka obsession to shape the game from the very back, with Manuel Neuer also playing a vital role at Bayern Munich.

AS recently reported that the former Barcelona manager also had his eyes on Claudio Bravo as Joe Hart doesn't really fit with his style, but Valdes availability as a free-agent could temp the boss to reunite with him at the Etihad Stadium in the summer.

Valdes, meanwhile, would surely be open to return to a major club following his experience in Belgium. Nevertheless, his agent already said before the January transfer window that the Spaniard wanted to continue his career in the Premier League amid speculations linking him with the likes of Newcastle. Some reports them claimed that United blocked such a move, but should he become a free agent they will be unable to prevent him for joining their Manchester arch-rivals.