Kieran Trippier, right-back at Atletico Madrid, believes that his dream of moving to Manchester United may have to wait until the last days of the transfer window.The Red Devils have been in talks with Atleti about a move for the England international for a number of weeks now, although the two sides have so far not been able to reach an agreement on a fee.Kieran Trippier was one of England's heroes this summer / GES-Sportfoto / Getty ImagesDiego Simeone has insisted he sees Trippier as a key member on his side when Atleti…