Chelsea's players are usually required to report for a light warm-down the day after a game, but Di Matteo gave them the day off after the Juve defeat.
They will report for a 10.30am training session today and skipper John Terry, who is out with a knee injury, will introduce Benitez to the squad.
The 52-year-old has been out of work since he was fired by the then reigning European champions Inter Milan, just six months after replacing Jose Mourinho. Crucially, he has assured Abramovich he can restore £50m misfit Fernando Torres to former glories. Benitez brought Torres to Anfield from Atletico Madrid in 2007 and the Spain striker once claimed he was the 'most important coach of my career'.