The 2013–14 AFC Ajax season saw the club participate in the Eredivisie, the KNVB Cup and the UEFA Champions League. The first training took place on 24 June 2012, and the traditional AFC Ajax Open Day was held on 25 July, followed by a testimonial match on 3 July for retired former Ajax forward Sjaak Swart (also known as "Mr. Ajax") for his 75th birthday.