Republic of Ireland captain Nathan Collins is facing a race against time to be fit for the start of their Nations League campaign after suffering a calf injury, according to BBC News.
The defender's setback is a concern for manager Heimir Hallgrímsson as Ireland prepare for the opening fixtures of the competition, with Collins' leadership and defensive presence a key part of the side's plans.
No further details on the severity of the injury or a potential return date have been provided, so his availability remains uncertain heading into the squad's preparations.