the 2020–21 campaign, Lennon came under significant criticism after the club underwent a poor run of results that began with a 2–0 Old Firm home loss to Rangers on 17 October; this was followed by failure to qualify for the Champions League group stage, elimination from the Europa League in the group stage and elimination from the League Cup in the second round, ending the possibility of a fifth consecutive treble. As calls were made for Lennon to be sacked and fans began to protest outside Celtic Park following their elimination from the League Cup, the board of directors released a statement on 7 December in which they voiced full support of Lennon and his back room staff. After a brief turnaround in results, Celtic lost the second Old Firm game of the season on 2 January, and calls were once again made for Lennon to be removed from his position as hopes of a historic tenth title faded. Lennon was also criticised for taking the squad on a training trip to Dubai in January, during which two players contracted COVID-19; health protocols meant that 13 players and three coaches, including Lennon, had to be quarantined for 10 days after they returned. They consequently missed league matches with Hibernian and Livingston, both of which were drawn. There were more fan protests after a home defeat by St Mirren, the first time the Paisley club had won at Celtic Park since 1990. Despite previously stating that he would not resign, Lennon left the club on 24 February 2021 following a 1–0 defeat to Ross County, which left Celtic 18 points behind Rangers in the title race. Omonia On 8 March 2022, Lennon was appointed head coach of Cypriot First Division side Omonia on a two-and-a-half year deal, replacing former Rangers defender Henning Berg. On 25 May, Lennon led the club to their first trophy under his leadership, as they defeated Ethnikos Achna on penalties to win the Cypriot Cup; during extra time, Lennon received a red card and was ordered to leave the touchline by the referee. Ahead of the 2022–23 season, Lennon recruited players who he had managed at former clubs, including Adam Matthews and Gary Hooper (Celtic) and Brandon Barker (Hibernian). After defeat in the Cypriot Super Cup to Apollon Limassol, Lennon's Omonia team shocked Belgian side Gent 4–0 on aggregate to qualify for the UEFA Europa League group