Lingard explained why he took a long break from football before joining Seoul earlier this year.
"For pretty much the entire season [with Forest] I suffered severe tendinitis in my knees and Achilles. Sometimes I played in pain and other times I was just too sore to play at all. The only cure was rest but, in the summer, when I was out of contract, my nan got ill. She was an amazing woman - Pamela Lingard - and she and my grandad brought me up while, for long parts of my childhood, my mum battled depression," he said.
"But over the course of last summer, she became really poorly. She was in and out of hospital and though I was training hard and missed being at a club, it felt like being out of contract was God’s plan: I’m not going to give you a team right now, you need to stay home and be with your family. So that’s what I did. I spent as much time as I could with them and in November, when Nan passed away, Grandad took it really hard. He was depressed and suffering dizzy spells and was hospitalised himself. He needed looking after too, and there was the funeral to organise and a speech to give."