Burnley manager Sean Dyche says he is expecting a tough game against last season's Premier League champions Chelsea because of their ability to change the outcome of a game.
Burnley won 3-2 in the reverse fixture at Stamford Bridge, having gone into half-time 3-0 up.
The Clarets now sit seventh, having won 2-1 against Leicester, but a win against Antonio Conte's fifth-placed side on Thursday, live on Sky Sports, would see them move up to sixth.
Chelsea beat Southampton 3-2 on Saturday, after coming back from being two goals down, with Dyche acknowledging the Blues' power when faced with a challenge.
Dyche said: "Chelsea have had a few challenges this season, but you only have to look at the Southampton game to remind yourself.
"It is a funny thing against the real top sides, against any side in the Premier League, but particularly the top sides they can look quiet.
"And then literally over a matter of minutes pick it up and all of a sudden they look like a different side. We've seen it right in front of our eyes, I've have seen it through live games, TV screens, many times.
"One team, a slightly lesser team like ourselves on paper, looking at that game and thinking 'there is nothing in this'.
"But then boom boom boom and it's done. That's the power of the real top teams. Chelsea still have that. Make no mistake we are moving forward but we are not there, we still have to work for every inch.
"I'm not saying they don't but they have players who can turn it on for a little window in the game and it can make a whole difference to the outcome.
"We are certainly moving forward, I don't think we are at the level of the top six where they are week in week out, but we are improving.
"But you can't suggest 'oh yeah this is normal to be 3-0 up against any of the top six' because that is very difficult to do."
Following Thursday night's match, Burnley will travel to league strugglers Stoke on Sunday at the bet365 Stadium.