On 26 February 2019, Lennon was appointed manager of Celtic for a second time, taking over until the end of the campaign following Brendan Rodgers' mid-season departure for Leicester City. Having helped the club achieve an unprecedented third domestic treble ("treble treble"), Lennon was appointed permanent manager for a second time at the end of the season. The 2019–20 season saw very similar success, even following the suspension of professional football as a result of the COVID-19 pandemic. The season was later curtailed and the title awarded to Celtic, who were thirteen points clear at the time of suspension, equalling the national record of nine consecutive championships set by Celtic in the 1970s and matched by Rangers in the 1990s. In addition to the league, they were once again victorious in the League and Scottish cups, giving the club their fourth consecutive domestic treble.
