Watford defender Craig Cathcart is confident his side's fitness will improve over the next few weeks.
The Hornets were leading Chelsea 1-0 on Saturday but conceded twice in the last 10 minutes to Michy Batshuayi and Diego Costa to come away empty-handed.
They will be back at Vicarage Road on Tuesday night to face Gillingham in the EFL Cup with Cathcart looking for a quick pick-me-up.
'Fitness might come into it a little bit, but it's still early in the season and we're all finding our feet,' he told the Watford Observer.