Crystal Palace are thought to be among the clubs eyeing a move for Porto star Hector Herrera, with reports claiming the Eagles' scouts have been frequenting the club's matches in Portugal recently.
The Mexico international, whose contract will expire at the end of this season, is wanted by a host of clubs from Arsenal to Real Madrid. According to A Bola (via Sport Witness), Palace are among the many teams interested in moving for what would be considered a free transfer coup.
28-year-old Herrera who has made 70 appearances for Mexico played all four of El Tri's games at the summer World Cup in Russia.
Roy Hodgson is still looking to add reinforcements in his midfield after failing to land Chelsea's Ruben Loftus-Cheek
The Eagles have only managed two wins from their eight games played so far this term but they may have sensed that Herrera is someone who could come in to facilitate immediate improvement. However, they will face major competition, with Arsenal one of the clubs said to be keen on the player as well.
According to English sources, the Gunners want the Mexican to come in as a replacement for Aaron Ramsey, who could leave the Emirates for free next summer as his contract is set to expire too.
The Welsh star isn't believed to be any closer to signing a new deal with the London side and, per reports, they are already working to identify potential alternatives.