Sheffield boss Christian Nelleman now insists staff aren’t expected to work 18-hour days

He responded saying: “To be honest I was really surprised by the reaction to my LinkedIn post because I didn’t actually think I was saying anything particularly controversial – hard work has been part of the secret to my own success, and I just wanted to share that.

“The post was an extract from my book Raw Business and I myself put in 12-18 hours a day for six to seven days a week for many years to create XLN.