Sánchez, 35, was in the stands on Wednesday night to watch the Hornets rack up a sixth win in seven games at Vicarage Road with a 2-0 victory over Wycombe Wanderers.
“I watched the last game and I really liked it,” he said. “We have a nice team, good quality players and I am really impressed. We played very well and we have a good idea – and this is very important. I am very happy and excited.”
The former Fiorentina and Espanyol deep-lying midfielder is short on game time having been released by West Ham last summer, but he looks fit as a fiddle and will be a handy addition once he gets up to speed.
“I never stopped training,” he said. “When I left West Ham, I go with my family to Spain and I train on my own. I have kept fit and I was looking for a chance like this. When the club called me, I said 'yes, of course'. I'm fit and I want to be involved. I am a guy who never gives up. I know what the team needs and so I want to show what I can do. I have experience, I have qualities and I want to bring them here and help the team to get its objective.”