Reports in England have emerged that Arsenal have now joined Barcelona in the race for the teenage star Matthijs de Ligt for a move this summerThe Daily Mirror has reported that Arsenal had sent one of their top scouts for Holland’s friendly against England to watch the Ajax defender in action over the international break. De Ligt has now firmly established himself at the Johan Cruijff Arena this season and is now a regular for the Dutch national side under new manager Ronald Koeman at the age of 18 years old. Among Arsenal, it is believed that Barcelona have also held a strong interest in signing De Ligt with the Dutchman having been spotted recently in Catalunya with fellow rumoured target Justin Kluivert. Due to the ever increasing value being placed on De Ligt, Arsenal fear that he may soon be out of their reach and have listed Greece international Panagiotis Retsos as a suitable alternative for a young defender. The 19 year-old currently plays for Bayer Leverkusen in the Bundesliga after having completed a £15m deal from Greek giants Olympiacos.