Arsenal and Tottenham Hotspur will reportedly go head to head for the signature of Porto midfielder Hector Herrera.
The 28-year-old, who was in action for Mexico at the 2018 World Cup, has made more than 200 appearances for Porto since a move from Pachuca in 2013.
The midfielder's current deal will expire at the end of the season, however, and it is understood that he will move on a free transfer next summer.
A number of clubs have been linked with the Mexican, but according to Corriere dello Sport, Arsenal and Tottenham will battle for his signature at the end of the 2018-19 campaign.
Herrera has scored 27 times for Porto, including one in 11 appearances for the Portuguese champions this season.