Close to 30 past singles champions, including Rod Laver, Bjorn Borg, Billie Jean King, Chris Evert, Venus Williams, Rafael Nadal, Novak Djokovic, Andy Murray and Roger Federer, made appearances while there was a singing cameo from Sir Cliff Richard.
Here, the PA news agency picks out the best pictures from the occasion.
Douglas holds a position as a content writer at Neptune Pine.
His academic qualifications in journalism and home science have offered her a wide base from which to line various topics.
He has a proficiency in scripting articles related to the Health industry, including new findings, disease-related, or epidemic-related news.
Apart from this, Douglas writes an independent blog and assists people in living healthy life.