CHELSEA SUBS: Kai Havertz, Antonio Rudiger, Olivier Giroud, Cesar Azpilicueta, Jorginho, Ben Chilwell, Mateo Kovacic, Willy Caballero, Callum Hudson-Odoi.
CHELSEA (4-4-2): Kepa Arrizabalaga; Reece James, Kurt Zouma, Andreas Christensen, Emerson; Hakim Ziyech, Mason Mount, Billy Gilmour, Christian Pulisic; Timo Werner, Tammy Abraham.
Since their FA cup victory, Chelsea have beaten Fulham, but then suffered defeat against Leicester in Premier League, which leaves them 9th in the table. Meanwhile Luton are 13th in the Championship table, but they suffered a 1-0 defeat against Brentford last time out.
Chelsea overcame League Two Morecambe 4-0 in the third round of the FA Cup and today they play lower league opposition in Luton, who beat fellow Championship side Reading 1-0 in the last round.
Hello and welcome to our LIVE match commentary of the fourth round FA Cup clash between Chelsea and Luton Town at Stamford Bridge.