Premier League players' return to training was hampered by sticky balls due to the disinfectant sprayed on them.
All 20 clubs have now resumed controlled sessions with the league hoping Project Restart, which aims to complete the 2019-2020 season, will be enacted next month.
But according to The Sun, players have slammed the first phase of Covid-19 training programmes as 'pointless' and 'ludicrous'.
There have reportedly been issues with the disinfectant that clubs are spraying on footballs as part of hygiene measures.