Watford defender Christian Kabasele believes the potential Premier League return date of June 12 would be 'impossible' and that action should not resume until later that month.
'Project Restart' is well under way as the English top flight attempts to resume action amid the coronavirus pandemic.
Phase one of small group training, respecting social distancing began this week after being voted through by clubs after testing got under way.
Defender Adrian Mariappa and two members of Watford's staff returning positive Covid-19 tests ahead of the resumption of training, which Kabasele says cannot be rushed due to the threat of injury.