One player Manchester City got rid of has seen his market value skyrocket in recent months. The previous summer transfer window saw numerous players make moves in and out of the Manchester club after they won the Treble. One of the players who waved goodbye to the Etihad last summer has since seen his market value shoot up as a result of his impressive performances with his new side, thus raising the question of whether or not the Citizens made a mistake in letting him go. Did City make a mistake selling Cole Palmer? After working his way through the youth ranks at City, Palmer made 41 senior …