Bristol City and Watford extended their unbeaten Championship runs to four games apiece after a goalless draw at Ashton Gate.
The Hornets controlled the first half without testing home goalkeeper Daniel Bentley - Craig Cathcart heading their best opening wide at the back post from James Garner's whipped cross.
Vladimir Ivic's visitors, who were without three unnamed players who have tested positive for coronavirus, tailed off in the second half as City forward Antoine Semenyo looked the most likely to make something happen.
His low cross was tipped out of Famara Diedhiou's path by Watford keeper Ben Foster before the 20-year-old bent wide from a tight angle, and Foster was again called into action in stoppage time to tip over Tommy Rowe's scuffed effort.