From a Manchester United academy product to international stars: 13 free agents Middlesbrough could sign this summer

Middlesbrough look set for a summer of change this year - and will no doubt be looking for potential bargains in the transfer market.
SAMARA, RUSSIA - JULY 07:  Martin Olsson of Sweden is challenged by Marcus Rashford of England during the 2018 FIFA World Cup Russia Quarter Final match between Sweden and England at Samara Arena on July 7, 2018 in Samara, Russia.  (Photo by Ryan Pierse/Getty Images)SAMARA, RUSSIA - JULY 07:  Martin Olsson of Sweden is challenged by Marcus Rashford of England during the 2018 FIFA World Cup Russia Quarter Final match between Sweden and England at Samara Arena on July 7, 2018 in Samara, Russia.  (Photo by Ryan Pierse/Getty Images)
SAMARA, RUSSIA - JULY 07: Martin Olsson of Sweden is challenged by Marcus Rashford of England during the 2018 FIFA World Cup Russia Quarter Final match between Sweden and England at Samara Arena on July 7, 2018 in Samara, Russia. (Photo by Ryan Pierse/Getty Images)

We’ve identified 13 players who are out of contract ahead of the 2019/20 season and could be targeted by the Teessiders.