Leicester City's Polish international is also wanted by Birmingham City and Derby County.
Tottenham Hotspur allowed Nabil Bentaleb to join Schalke on a season-long loan during the summer transfer window.
West Ham have struggled so far this season. How much better off were they at the same stage last season?
Everton were torn apart by the Blues at the weekend.
Former Manchester United midfielder Darren Fletcher wants Leeds United back in the top flight.
Sunderland finished the group-stages with a win over Notts County.
Tottenham battled to a 1-1 draw with Arsenal in the London derby as the spoils were shared on Sunday.
Hobbs is yet to feature for Nottingham Forest this season.
Newcastle United defender Jamaal Lascelles has been linked with Chelsea.
Liverpool have earned high acclaim for their impressive displays so far this season.