Watford and Ipswich have gone into half-time all square at 0-0 after neither side could find the opening goal in the first 45 minutes.
Lee Martin came close for the visitors inside three minutes, but his dipping shot was stopped by Manuel Almunia.
The midfielder came close again after 23 minutes, but this time he failed to steer his shot on target as it flew just over the bar.
Massimo Luongo was the next to have a sight of goal for the Tractors, but his effort flew just past the post as the two sides entered the break level.
