Liam Rosenior hailed 18-year-old Estevao's impact as Chelsea sealed their third straight win with a 3-1 victory over Crystal Palace.
Chelsea announce Liam Rosenior as new head coach on contract until 2032
Chelsea winger Pedro Neto apologised for pushing a ball boy during Wednesday's 5-2 Champions League defeat to Paris St Germain.
Arsenal down Chelsea 1-0 to book a spot in their first League Cup final appearance since 2018.
With 17 goal attempts compared to Chelsea's 10, Arsenal will feel they should have gone home with a bigger margin of victory and it will be all to play for in north London on February 3.
England winger Raheem Sterling has left Chelsea by mutual agreement after being frozen out under successive managers, bringing an end to his troubled two-year spell at Stamford Bridge.
Manchester United's Benjamin Sesko scoring a stoppage-time equaliser to deny 18th-placed West Ham United a 1-0 win.
Manchester City, Chelsea and Arsenal progressed to the FA Cup quarter-finals after victories over Newcastle United, Wrexham and Mansfield Town respectively on Saturday.
Arsenal extends its lead in the Premier League, while Manchester United strengthens its top-four bid. Chelsea's Cole Palmer shines with a hat-trick, and West Ham earns a crucial win in their fight against relegation.
Arsenal maintained control of the Premier League title race as they chiselled out a nervy 2-1 win over London rivals Chelsea to open up a five-point lead at the top of the table on Sunday.
Chelsea battled from two goals down to beat West Ham 3-2 in the Premier League on Saturday with a stoppage-time Enzo Fernandez winner.
Arsenal's Premier League title prospects were enhanced without them even kicking a ball on Wednesday as their closest challengers Manchester City and Aston Villa both dropped points.
Arsenal took a seven-point lead at the top of the Premier League after a scoreless draw with Nottingham Forest on Saturday.
IMAGES from UEFA Champions League matches played on Wednesday