Already unavailable are Levi Colwill, Wesley Fofana, Reece James, Romeo Lavia, Christopher Nkunku and Lesley Ugochukwu all on the club’s injury report.
But there is a positive update for Chelsea with defender Ben Chilwell returning to partial training.
The Toffees touched down in Portugal last week, with a row breaking out between Dyche and several of his players shortly after their arrival.
The Everton boss is said to of slapped Patterson during a meal at their Algarve resort, according to the Daily Mail.
Although Dyche did not have harmful intentions for the 22-year-old defender, the former Burnley manager is said to have accidentally connected ‘forcefully’ – which left a number of first-team stars unimpressed.
England international James Tarkowski was forced to step in, as he took Dyche aside to let tempers settle after Patterson had become enraged. The report goes on to claim that Dyche has since apologised to the player.