Watford have re-signed winger Tommy Smith for around £500,000 from Championship side Derby.
Smith spent six years with Watford from 1997 to 2003
Smith, who progressed through the youth ranks to the first team at Vicarage Road, has signed a four-year contract with the Premiership newcomers.
He left the Hornets in 2003 after making 167 appearances and joined the Rams following a spell with Sunderland.
Smith, 26, started his career as a striker but has mainly been used as a winger during his time at Pride Park.