Liverpool legend Steven Gerrard says Arsenal goalkeeper Petr Cech must never be dropped.
Arsene Wenger has continued to give David Ospina the chance to feature in the Champions League.
"For me it's a no-brainer, you've got to play Petr Cech," Gerrard told BT Sport after Arsenal's win over Basle.
"It's OK in a group game or a game like tonight where there's not really too much on the line, but when you go into the last-16 it's got to be Petr Cech for me."