Paul Warne has provided a concerning update after Nathaniel Mendez-Laing was forced off during Derby County’s win over Charlton Athletic. After a tough start to the year, Derby County finally moved up into League One‘s automatic promotion spots as they claimed a tight victory at The Valley. Nathaniel Mendez-Laing had a rollercoaster of an afternoon for the Rams, which eventually ended with him being substituted in the first half. A challenge on the winger inside the first half an hour left him with a gash on his foot, which was then treated by the physio and club doctor on the sidelines. Mende…