"The relationship [with the owners] is very intense, very close, which it has to be - because without Petr and without Marinaสโมสรฟุตบอลแมนเชสเตอร์ยูไนเต็ด, it's a big change in the daily structure and communication," Tuchel said from Los Angeles as the team prepared for their pre-season tour of the US.