Di Matteo was given the job for the remainder of the season following the sacking of Andre Villas-Boas in March and led Chelsea to success in both the FA Cup and Champions League.
Despite the trophies it remains unclear if owner Roman Abramovich will give the former West Brom boss the job on a full-time basis. Gourlay said: “(A new manager could be appointed) any time over the next couple of weeks and certainly by the time we go on tour,” he said.
“The players report back on July 4 or 5 and in an ideal world you want the coach in position by then. The fact that he (Di Matteo) has the Champions League on his CV helps him enormously.”