England's Alastair Cook leaves the field after flashes at a bouncer and loses his wicket to Chris Morris of South Africa (R (no cap) celebrating with Francois du Plessis of South Africa) out for 42 runs caught Quinton de Kock of South Africa England v South Africa, 2nd Test Match, Day 4, International Cricket, Trent Bridge, Nottingham, UK - 17 Jul 2017 Credit: Andrew Fosker / Seconds Left Images