Club Players Association [CPA] chairman Micheál Briody has said it would be "sacrilege" for the GAA to condense club championships in order to give inter-county teams a larger window of preparation.
County players are expected to come under huge pressure to complete club championships and also be present for inter-county training from September onwards particularly.
The GAA's Covid-19 Advisory Group is preparing to draft a 'Return to Play' template specifically for those who play at the highest level.
Eleven weeks have been allocated strictly for clubs games, with counties scheduled to return to training on 14 September. Club games can resume from Friday, 31 July, with clubs allowed to resume training from 29 June.
The CPA have now urged the Association to protect the time they have given to club games for this year.
"As an association we must respect the integrity of our club competitions and this means using the time available in the best possible way," said Briody.
"Suggestions of a running of championships in blitz format or shrunk to a very tight time frame to enable county preparations are sacrilege and will have long lasting implications.
"We recognise that 2020 has been a year like no other for us all and we wish to express our deepest sympathy to all GAA clubs who have lost members of their community during this pandemic.
"We know also that it is the support of clubs that has supported and consoled many bereaved families despite these difficult times of social distancing and uncertainty."
Briody also praised the GAA for resisting pressure to allow access to pitches too early. The GAA have been cautious in re-opening its facilities, with the Association sticking to the 29 June date for the opening of club pitches.
"At the highest level, the GAA have provided very clear and unambiguous leadership in completely closing club facilities at the height of the crisis. This undoubtedly saved lives.
"We also commend clubs and their members for coming together to help others in their communities during the pandemic. It has shown the underlying strength of the GAA lies in the grassroots community led togetherness.
"Now as we return to play our games it is very positive that club hurling and football has been allocated 11 weeks at the height of summer. It will bring a great lift to communities to get our games back under way, however we have a number of concerns we are asking GAA leadership to address."