It was announced earlier this afternoon that Whittingham died in hospital after suffering a head injury last week.
He retired in 2018 after a 15-year career which also took in spells at Aston Villa, Burnley, Derby County and Blackburn Rovers, but was best associated with the Bluebirds, where he played under Solskjaer in the Premier League in 2014.
Paying tribute, Solskjaer said: “I was deeply saddened to hear of the passing of Peter Whittingham.
“Peter was a fantastic footballer and an incredible human being. I thoroughly enjoyed working with him during my time at Cardiff City.