Jose Mourinho's return to Stamford Bridge will be eclipsed by a tribute to Matthew Harding.
This weekend marks 20 years since Harding, a passionate Chelsea fan and self-made millionaire who became vice-chairman, was killed in a helicopter crash at the age of 42 after watching a League Cup tie at Bolton.
His memory has lived on, fans still sing his name and the North Stand was renamed in his honour after the tragic accident in which he died along with four others.
Harding's widow Ruth and other family members will be among the guests of honour at Sunday's Premier League game against Manchester United.