Marler, who has suffered a knee injury during the restart, is the latest to call out these double-standard, tweeting: "9 games in 7 weeks......... what a bloody fantastic idea that was."
The 2020 Premiership final has been arranged for 24 October, with England's rearranged Six Nations fixture with Italy planned for the weekend after, before a further block of internationals in November.
No rest anytime soon for Marler. Here are how fans reacted to his tweet:
7 things you didn’t know about Joe Marler:
1.Starting out
Marler started his career at Haywards Heath RFC in Sussex where he played in the same side as fellow England international Billy Twelvetrees.
Despite failing to cross the whitewash in his 66 caps since making his England debut in 2012, he did score in one of his two appearances for the British & Irish Lions during the 2017 tour to New Zealand.
He is obviously a fan of Friends, except he added his own twist to it by choosing two ducks instead of having a chicken.
7.Partner
Marler is happily married to long-term partner Daisy, with whom he has three children. Jasper, 5, and Maggie, 3, were joined by another new born just before the World Cup commenced.