David Moyes admitted he would be interested in any player he believes could improve West Ham, though he stopped short of confirming reported interest in Ross Barkley.
England international Barkley has been linked with a January loan move to the Hammers, who missed out on Gedson Fernandes after he joined rivals Tottenham on Wednesday.
Midfield is an area of need for West Ham given Jack Wilshere continues to be beset by injury problems and Barkley is thought to be of interest to Moyes.
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Former Everton boss Moyes handed a 17-year-old Barkley his Premier League debut back in 2011 and was asked about the two linking up again at London Stadium.