Ghana's all-time leading goal-scorer Asamoah Gyan announced his international retirement on Monday, less than a month before the start of the Africa Cup of Nations. The news followed shortly after he was removed as the national team's captain, a move more official than a shock as he'd not featured for the side in years. Striker Gyan had not featured for the side since September 2017 after persistent injury problems, and has also battled for game-time with his Turkish club Kayserispor. Despite this,...