The international break is often a time some clubs can lose key players to avoidable injuries, and Liverpool fans are feeling the heat with Alexis Mac Allister. Mac Allister picked up an adductor problem whilst on duty with Argentina, with the 25-year-old midfielder forced off for the reigning FIFA World Cup champions in their recent fixture against Chile. With Argentina travelling to face Colombia in a repeat of the Copa America final, Mac Allister could well miss out on this international fixture ahead of his return to Liverpool later this week, a scenario the Reds could benefit greatly from…