Celtic F.C. their sixth successive league title on 2 April 2017, with a record eight league games to spare. As Celtic's unbeaten domestic run continued, they subjected Rangers to their heaviest defeat at Ibrox since 1915, 5–1, on 29 April. Celtic's 2–0 win over Hearts on 21 May saw them finish 30 points ahead of second-placed Aberdeen in the league, with a record 106 points, and the team became the first Scottish side to complete a top-flight season undefeated since Rangers in 1899. On 27 May 2017, Celtic clinched their fourth treble by defeating Aberdeen 2–1 in the Scottish Cup final. The
History of Celtic F.C. (1994–present) that may well never be beaten". By finishing third in the Champions League group stages, Celtic qualified for the knockout round of 32 in the Europa League where they were drawn against Zenit Saint Petersburg. Celtic won the first leg 1–0 after a late winner by Callum McGregor, but succumbed to a disappointing 3–0 defeat in Saint Petersburg and were subsequently knocked out of the competition. On 29 April 2018, Celtic secured their seventh consecutive league title with a 5–0 win over Rangers at Celtic Park. This win also extended Celtic's unbeaten run over Rangers to 12 games. Celtic's season