An exclusive from Football League World reports that English Millwall midfielder Billy Mitchell has rejected a new contract offer at his boyhood club. The report states he joined the club in January 2020, making him available on a free transfer this summer if the situation does not change. The report also reveals that managerless Watford FC are considering a move for the 25-year-old tough-tackling midfielder. The Hornets are seeking new players to strengthen their midfield, an area of the team that is likely to need significant work, and are now expected to prepare an offer for Mitchell. His current market value on Transfermarkt is €3.00m.