Doncaster remain bottom of the Championship table after a 0-0 draw with Watford on Saturday afternoon.
It was the home side who made the early running with El-Hadji Diouf proving a thorn in the side of the Watford defence.
Watford remained strong, however, and had chances themselves without ever really threatening to break the deadlock.
On-loan West Brom striker Marc-Antoine Fortune proved a threat in the opening half but was too often caught offside when the home side threatened to counter.
The result leaves Doncaster bottom, while Watford sit just a point outside the drop zone after 18 games played.