Former Watford midfielder John Eustace has signed a one-year contract with Championship side Derby County.
The 33-year-old was a free agent after turning down a new deal with the Hornets in the summer and has since been training with the Rams.
He has played in the pre-season games and agreed terms earlier in the week.
Eustace told BBC Radio Derby: "The atmosphere in the dressing room is top drawer. Everyone is together and looking forward to the season."
Manager Nigel Clough said: "We are not too blessed with his sort of experience and we are delighted.
"He is such a good character to have around. He is a good influence on the younger players. I don't think we have anybody like John in our squad at the moment.
"He is somebody who can sit in front of the back four and I think he will be especially useful away from home."
He was injured early on last season and only played seven games for the Hornets.