Chelsea have made a number of moves official already this summer as they look to give their new manager the best possible backing. The highlight addition up to now has been Kiernan Dewsbury-Hall, who enjoyed his best personal season last time out under Enzo Maresca. Tosin Adarabioyo has also been brought in on a free transfer, and sources have been very impressed with how he has started life at Cobham. One position they reportedly have held an interest in strengthening is goalkeeper, despite the fact that Maresca has reportedly been hot on the two currently at the club. Chelsea reach out to Ma…