Ajax will start their Champions League campaign against Greek champions PAOK FC after the draw for the third qualifying round took place on Monday.
The Dutch side came within seconds of the final last season before suffering heartache against Tottenham - but the Eredevisie champions must still start their season in the qualifying round due to Holland's position in the UEFA co-efficient.
They face a tricky test against the Greek side, who fell one step short of reaching the group stages before being beaten by Benfica last year.
Scottish champions Celtic also discovered their fate.
If they defeat Estonian outfit Nomme Kalju in the second qualifying round, they will face either Romanian side CFR Cluj or Israel's Maccabi Tel-Aviv.
Welsh side The New Saints are still in the mix - although they face a huge test against Copenhagen in the second qualifying round.
If they can overcome the Danish side, they will set up a clash with the winners of Red Star Belgrade vs Helsinki.
Reaching the group stages provides a lucrative reward, with an eye-watering £14m on offer just for reaching the main competition with a further £2.4m for a win and £800,000 for each draw.
Champions League third qualifying round draw
CFR Cluj or Maccabi Tel Aviv vs Celtic or Nomme Kalju
PAOK vs Ajax
Sarburalo or GNK Dinamo vs Ferencvaros or Valletta
NK Maribo or AIK vs BATE Borisov or Rosenborg
Red Star Belgrade or Helsinki vs The New Saints or Copenhagen
FC Krasnodar vs FC Porto
Club Brugge vs Dynamo Kiev
Istanbul Basaksehir vs Viktoria Plzen or Olympiacos
PSV Eindhoven or FC Basel vs Lask
