The two clubs met in last season’s quarter-finals, with Juve triumphing 3-0 on aggregate after a convincing first-leg win in Turin.
Juve 12/1 with dabblebet to win Champions League
Massimiliano Allegri’s side went on to advance to the final only to be beaten by Real Madrid.
Olympiacos and Sporting complete the group and will face an uphill struggle to deny two of Europe’s big guns a place in the knockout stage.
Sporting finished bottom of their group last season, while Olympiacos were eliminated by Hapoel Be’er Sheva in the third qualifying round.
Matches will kick off on September 12, with the group concluding on December 5.
