Munster Rugby called off training today as a precautionary measure after one of their academy players returned a positive test for Covid-19.
The province say that the player in question self-isolated immediately after developing symptoms on Sunday.
Munster, who say both the senior and academy squads did not train, have contacted the HSE and the contact tracing process has commenced.
"In taking all precautions, Munster Rugby have immediately identified five Academy players and one senior player as potential close contacts from social and household settings and the six players have already commenced self-isolating," reads the official statement.
"The province will await further guidance from the HSE in this regard.
"The senior squad will return to the HPC on Monday to complete the third phase of the IRFU’s routine PCR testing and resume preparations for the Guinness PRO14 encounter against Leinster.
"Test results will be released publicly in line with the process for phase one and two of these routine tests."
The news comes just nine days before Munster are due to return to action with a Guinness PRO14 inter-provincial derby match against Leinster.
That match is on Saturday week at the Aviva Stadium where they will also face Connacht eight days later.
Munster Rugby Head of Medical, Dr Jamie Kearns, said: "The health and safety of our players and staff is the priority and that is why we are taking all precautions, going above and beyond, ensuring the safe resumption of training and rugby next week.
"The player involved has not been in the High Performance Centre this week and the HSE have confirmed that the training group are not considered as close contacts.
"The individual is continuing to be monitored medically and remains well.
"There are protocols and policies in place that everyone has been following, and we will continue to be vigilant in all our efforts as we move closer to the return of rugby on Saturday week."