Cattermole hurt his back in a challenge during the game against Chelsea while Cana damaged a hand.
Bruce said: "Lorik Cana has got X-rays in the morning. He's got a bang on his hand and it could be broken. We hope not."
It is being widely reported that Leicester City are the favourites to sign Manchester City striker Kelechi Iheanacho, and if
Last week Wayne Rooney completed his return to boyhood club Everton, writing the final chapter in a fairy tale career.
Wayne Rooney has returned to Everton after 13 years at Manchester United.
Germany defender Antonio Rudiger has joined Chelsea from Roma on a five-year contract.
Wayne Rooney has closed the chapter on a Manchester United career that featured a raft of honours across 13 years.
Wayne Rooney has returned to Everton after a record-breaking career at Manchester United.