Dhaka, Dec. 25 -- Arsenal goalkeeper Kepa Arrizabalaga is relishing the prospect of knocking former club Chelsea out of the League Cup following his key role in a penalty shootout win over Crystal Palace.

The Gunners went through to the semi-finals on Tuesday after Kepa saved Maxence Lacroix's spot-kick in a dramatic 8-7 shootout success following a 1-1 draw with Palace at the Emirates Stadium.

Kepa spent seven years with the Blues before moving to north London in pre-season and he could now deny his old side a spot in the first major final of the current campaign.

Kepa, who has made all three of his Arsenal appearances so far in the League Cup, said: "Right now, if you want a trophy, and that's something that we want, we have to fight...