Thomas Tuchel recently booked another ticket to the cup final after a victory over London rivals Crystal Palace, while Arsenal face the crucial clash after three defeats in a row.
Indeed, Mikel Arteta risks seeing a hugely promising season unravel and faces the daunting task of stopping the rot against the European and world champions at Stamford Bridge.
Chelsea, meanwhile, have managed to maintain their impressive record of making big trophy plays even despite all the uncertainty off the pitch.
Here’s everything you need to know about where to watch the game today.
Where to watch Chelsea vs Arsenal
Television channel: The match will be televised on Sky Sports Premier League and Main Event, with coverage from 7pm
Live broadcast: Sky Sports subscribers will be able to watch the match online via the Sky Go app.
Live blog: You can follow all the action via Standard Sport’s live blog, with James Robson and Simon Collings on the pitch to provide expert analysis.