Fifht-placed County are desperate to get back to winning ways after six games without a victory against a Hornets side currently lying second.
“What has happened has gone and now we are ready to start again,” midfielder Hendrick told the club’s official website
“With the run we are on, the international break came at the right time for us. It was good to have a break and have a few days away from the training ground.
“It’s important to try and put the last month out of our minds and come back to training with everyone’s focus being on the last seven games of the season.
“What has happened has gone and now we are ready to start again. The first game against Watford on Friday is going to be difficult, but all seven of them are going to be difficult and we have to make sure we are ready for what is to come.”