Watford have re-signed defender Adrian Mariappa on a three-year deal.
The 29-year-old was released by Crystal Palace in the summer after making 39 Premier League appearances for them in three seasons.
The Jamaica international started his career with the Hornets and made 216 league appearances for the club before leaving for Reading in July 2012.
Mariappa could feature for Walter Mazzarri's side against West Ham on 10 September.
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