The Ajax centre-back will link up with former manager Erik ten Hag at Old Trafford after rejecting a move to Arsenal. 2 Lisandro Martinez traveled to Manchester on a private jet with agent Christian BragarnikCredit: Instagram 2 The centre-back will join Manchester United in a £42million moveCredit: Getty Argentina international Martinez will become Ten Hag’s third signing of the summer after United finally agreed a £42m fee with the Dutch champions. United have signed Tyrell Malacia from Feyenoord and free agent Christian Eriksen, both of whom have Eredivisie experience. Martinez posted a photo on a private jet heading to Manchester with his agent Christian Bragarnik after being spotted by fans at Amsterdam’s Schiphol Airport. He could join United’s pre-season tour of Australia at the weekend after completing his medical. The 24-year-old is a ball-playing rock and exactly what Ten Hag needs, with stats suggesting he could be the answer to United’s defensive woes. Martinez may not be the last former Ajax star to move to Old Trafford this summer with Ten Haag desperate to land Frankie de Jong as well. United have agreed terms with Barcelona for the Dutch midfielder. However, De Jong is keen to say at the Camp Nou this summer. FREE BET AND SIGN UP OFFERS – BEST NEW CUSTOMER OFFERS President Joan Laporta also confirmed that De Jong will be on Barca’s US tour. On Friday, he said: “It is not true that we are being forced to sell Frenkie de Jong, that is not right. “Frenkie’s trip to the US will be decided by Xavi. I understand that Frenkie will be on the US tour.” Ajax winger Anthony is also on Man Utd’s radar.