Wigan Athletic boss Steve Bruce says he wasn't surprised by Chelsea's sacking of Luiz Felipe Scolari.
"It is incredible what happens in football and it doesn't surprise me any more," he said.
"He (Hiddink) has got one of the great jobs; they are still involved in three trophies.
"I have the highest regard for Guus Hiddink and when I watched them in the Champions League they are a very good team with very good players.
"I saw them pulverise Juventus in the first half of their Champions League tie last night so there is not an awful lot wrong.
"A new manager has brought another intensity, they are going to be rolling up their sleeves and giving it a go - that is normal in the short term.
"That means we are going to have to work damn hard on Saturday."