The 26-year old will be partnering Juventus powerhouse Arturo Vidal in the centre of Chile's midfield at the World Cup. During his debut season in the Premier League, the defensive minded midfielder featured 34 times for the Welsh outfit, impressing critics despite the Bluebirds eventual relegation from the top flight.
His performances drew interest from a number of clubs, with a move back to Spain rumoured. The former Sevilla man, who signed 12 months ago for a club record £11 million, was targeted by Valencia and Malaga as the season progressed, although interest had died off in the last few weeks.
However, the Guardian is reporting that Valencia have renewed their interest, and despite only spending one season with Cardiff, Medel has expressed his desire to leave following relegation to the Championship. The club are said to be willing to negotiate for the player, due to his lower morale in Wales making him a less than ideal squad member.
It is unlikely any deal will be completed before the end of the World Cup, despite Bluebirds boss Ole Gunnar Solskjaer completing incoming transfer business early. Centre forwards Javi Guerra, Federico Macheda and Adam Le Fondre, along with midfielder Guido Burgstaller have all been confirmed as the Manchester United legend rebuilds his squad in the search for an instant return to the Premier League.
Medel, who has also played for Universidad Catolica and Boca Juniors, looks set to add to his 61 caps for Jorge Sampaoli's La Roja this summer, as Chile being their World Cup campaign against Australia as dark horses, having been drawn with Spain and the Netherlands in a challenging Group B. However, having impressed in qualifying, and in a selection of pre-tournament friendlies, no one is writing the South American's off.
It is likely that Medel will impress in the centre of Chile's midfield, and could draw a wider range of potential suitors from across Europe and the Americas. Despite Cardiff's active squad strengthening, the loss of Medel will be felt next season, and the club that benefits from his departure will become instantly stronger.