By Andy Dunn Joe Gomez admits he had to overcome a psychological barrier when he returned to England’s training base this week – three years and four months since he sustained a “gruesome” injury at St George’s Park. And the Liverpool defender says there was an “underlying trauma” when he stepped back onto the training pitch where he was dealt a career-threatening blow in November, 2020. At the time, Gareth Southgate labelled the incident “upsetting” but, after his recall to the squad, Gomez revealed just how physically and mentally challenging the setback was. Explaining the emotions he felt …