David de Gea  would love Barcelona  midfielder Thiago  to join him at Manchester United  next season but realises that the Spanish champions will not let go of the 22-year-old without putting up a fight.The Premier League giants are keen to add some fresh blood to their midfield this summer and have made the Barca starlet one of their primary targets. "Hopefully I will have a Spanish team-mate at United next season. I, and every other Manchester United player, would like him to join the club," De Gea was quoted as saying by El Mundo Deportivo."We have been joking about him joining United. Barcelona will realise that they have a great player, though, and I don't think they will let him go." The Spain international has a contract with Barcelona until the summer of 2015 but the failure to participate for a stipulated amount of minutes in 2012-13 has seen his exit clause plummet from €90 million (£76.9m) to an attractive €18m (£15.4m). However, his minimum fee release clause returns to €90m on August 1.Thiago is a product of the Barcelona youth academy and has made over 100 official appearances for the Catalans since making his first team debut in 2008-09.