briefly, for the beginning of the 2015–16 season, but was sent to train with the Under-21 squad and was not given a squad number. On 1 September 2015, Lennon rejoined Everton permanently on a three-year deal for a reported fee of £4.5 million. He began 2016 in a rich vein of form, scoring in a 1–1 draw at home to former club Tottenham, and in three successive Everton wins in late January and early February. Lennon continued his scoring run in a 3–1 away win at Aston Villa and he also netted in a 3–2 home loss to West Ham United on 5 March. However, this form proved to be short-lived as results for the team worsened and a poor end to the season led to the sacking of manager Roberto Martínez. The new season had a more frustrating feel as Lennon found himself well down the pecking order when new boss Ronald Koeman took charge of the club. Lennon had played just 14 minutes of football during the first two months of Everton's league campaign with his first league start coming on 19 November 2016 in a home match against Swansea City. Burnley On 23 January 2018, Lennon signed for Premier League club Burnley for an undisclosed fee on a two-and-a-half-year contract. His debut came on 31 January, coming on as a substitute in an away game against Newcastle United which ended in a 1–1 draw. Lennon did not get on the scoresheet until the following season when he scored his first and only goal for the club came in a September 2018 home game against AFC Bournemouth which finished 4–0. He left the club on the expiration of his contract in June 2020 having made a total of 55 appearances. Kayserispor Lennon joined Süper Lig club Kayserispor on 2 September 2020 on a free transfer. Return to Burnley Lennon re-joined Burnley on 25 August 2021 after the expiry of his Kayserispor contract. He made his second debut against Newcastle United in the EFL Cup the same day. Burnley announced on 10 June that Lennon would leave the club at the end of June when his contract expired. Lennon announced his retirement from football on 15 November 2022. International career Lennon was called up to the England U21 team for the first time in October 2005 and on 8 May 2006, he was picked in England's 2006 FIFA World