It has been reported that Manchester City are interested in signing one player in the summer transfer window. For Manchester City to maintain their dominance at the top, they will have to make sure their summer business is also a level above the rest. After winning the Premier League title, Kyle Walker recently admitted that the gap between City and Arsenal is closing — emphasising the need to strengthen in key areas. Man City interested in signing £63.6 million man in the summerOne of the areas of the pitch that the Sky Blues might need to address before others is in between the sticks. It wa…