Experienced midfielder David Fox has rejoined Colchester United on a three-month deal.
The 30-year-old played 21 times for the U's during the 2009-10 season before moving to Norwich City.
Fox was released by Norwich over the summer following a four-year spell at Carrow Road.
"David adds experience to a young squad," manager Tony Humes told the club's official website. "He fits our profile of how we want to play the game and will be a good addition to the squad for the coming months."
Colchester are currently in 21st place in the League One table.
