Elite sport has been given the green light to continue despite yesterday's announcement of a return to Level 5 restrictions that are set to stay in place until at least January 31.
Top-level training and matches - as well as horse racing and greyhound meetings - can continue behind closed doors.
However, all underage and amateur sports, indoor and outdoor, will be closed until at least the end of next month, meaning no training will take place until the Government lifts the full Level 5 restrictions.
With the GAA and League of Ireland seasons in the middle of their off-season, only professional rugby matches will take place next month.
However, the GAA have set January 15 as the date for a return to inter-county training but it is unclear whether this will go ahead. Some minor and U-20 GAA matches, including the All-Ireland U-20 hurling final between Cork and the winners of Galway and Dublin, were already postponed.
Golf courses and tennis clubs will remain off limits until January 31.
All gyms, leisure centres and swimming pools will also shut from close of business today.
Only individual training will be allowed but no exercise classes can take place.
Under the modified Level 5 restrictions introduced in November, training among groups of 15 for underage and amateur teams was permitted but yesterday's announcement sees a return to the stricter lockdown regulations that were first introduced last March.