LONDON, Dec 24 — Kepa Arrizabalaga said he had to make a quick shift in mindset after a late Crystal Palace equaliser took yesterday’s League Cup quarter-final to a shootout, where the Arsenal goalkeeper made a crucial save to earn his side a spot in the last four.

A Maxence Lacroix own goal gave Arsenal the lead in the 80th minute before Palace’s Marc Guehi levelled in stoppage time to take the tie to penalties.