Frank Lampard saw Chelsea make hard life for themselves in an FA Cup win at Hull City, where better finishing would have fended off a scare.
Chelsea captain Cesar Azpilicueta had strong words for his team-mates after they made hard work of an FA Cup victory at Hull City.
Chelsea hung on at Hull to book their place in the last 16 of the FA Cup, a competition their head coach Frank Lampard has won four times.
Michy Batshuayi will start Chelsea's trip to Hull City on Saturday and boss Frank Lampard is eager for the striker to show more consistency.
Kepa Arrizabalaga has attracted criticism in recent weeks and Chelsea boss Frank Lampard admitted the goalkeeper "needs to improve".
Tammy Abraham has avoided a serious ankle injury but Frank Lampard is still keen to bolster Chelsea's attacking options this month.
Chelsea head coach Frank Lampard commented on Kepa Arrizabalaga and addressed Tammy Abraham's injury after the four-goal draw against Arsena
Chelsea were held to a 2-2 draw by 10-man Arsenal, with mistakes at key moments annoying Frank Lampard.
Arsenal deserve huge credit for battling to a draw at Chelsea, who are no longer improving under Frank Lampard.
Arsenal had David Luiz sent off before the half-hour mark but Hector Bellerin ensured they left Chelsea with a point.