11 February 2020, making his return to his home country for the first time in fourteen years. Upon joining the club, he said he's aiming to help St Mirren avoid relegation. Wallace finally made his debut for the club, coming on as a 75th-minute substitute, in a 2–1 win against Motherwell on 25 February 2020. He made his first start for St Mirren, starting a match and playing 84 minutes before being substituted, in a 0–0 draw against St Johnstone on 4 March 2020. Seven days later on 11 March 2020, Wallace set up a goal for Jonathan Obika to the score the only goal of the game, in a 1–0 win against Hearts, which turned out to the last game of the season and saw the opposition team relegated when the season was curtailed with the club finishing ninth place in the league because of the COVID-19 pandemic. At the end of the 2019–20 season, he went on to make three appearances in all competitions. Following this, it was announced on 2 May 2020 when Wallace was among thirteen players top leaving Saints when his contract expired. Post-playing career Following his release by St. Mirren, Wallace retired from professional football. He previously announced his intention to move to coaching once his playing days is over. In March 2021, Wallace re–joined Burnley as club's youth development. International career Between 2002 and 2006, Wallace represented Scotland, playing from U18 and Scotland U21. In November 2007, Wallace was called up to the Scotland B team squad for the first time. He made his B team debut, starting the whole game, in a 1–1 draw against Republic of Ireland B team on 20 November 2007. Throughout his football career, Wallace made statements that moving to new clubs and performances would benefited his hopes of getting a call–up from the Scotland national team. There were public calls from teammates and managers to convince the national team to call him to the squad, but was overlooked instead. With the exception in October when he was called up to the national team squad. Wallace made one full international appearance for Scotland, in a friendly match with Japan on 10 October 2009. Personal life Early in his football career, Wallace developed a reputation for taking off his shirt after scoring a goal. After his sending off against Hull City on 28 October 2006, Wallace said he would