Ronny Deila reveals Celtic stress left him panicked and sleepless

Ronny Deila has revealed the demands of being Celtic manager caused him anxiety attacks, sleepless nights, and saw his personality affected during his two-year spell at Celtic Park.

The 41-year-old stepped down at the end of last season after winning a second consecutive title, but a failure to qualify for the Champions League put him under pressure.

Deila told Norway’s NRK TV: “I could have a stressful thought like: ‘We have to win this weekend.’ I’d be soaked in sweat, my heart pounding and head aching. I could wake up at 4am and couldn’t fall asleep again. I almost got social anxiety, It became a question of values: can you do this for the rest of your life?”