The Scotsman has been linked with interest from Championship clubs Aston Villa, Sheffield Wednesday, Leeds, Middlesbrough and Sunderland.
Snodgrass played for Leeds between 2008 and 2012 joining from Livingston for a compensation fee of £35,000. He was later sold to Norwich in 2012 for £3m.The Canaries doubled their money when they sold him to Hull for £6m in 2014. West Ham paid £10.2m to Hull when they signed him In January this year on a three and a half year contract.