Cillian Sheridan (born 23 February 1989) is an Irish professional footballer who plays for Scottish Championship side Dundee. Sheridan began his career with Celtic in 2006, but a lack of first team opportunities saw him being loaned to other Scottish clubs. In 2010, he switched clubs and countries joining CSKA Sofia of Bulgaria, from where he was loaned to Scottish side St Johnstone in 2011. After playing for Kilmarnock between 2012 and 2013, he signed for defending Cypriot champions APOEL. In both his seasons with the club, he won the double. Subsequently, he moved to rivals Omonia. He earned three international caps for the Republic of Ireland in 2010. Club career Early years Born in Bailieborough, County Cavan, Sheridan grew up playing Gaelic football for Bailieboro Shamrocks. He began playing the association code with Bailieboro Celtic before travelling to Dublin to play for Belvedere, where he received call-ups for Irish youth squads. During his time at Belvedere, Sheridan chose to focus on his football career, having turned down an offer to join Australian rules club Brisbane Lions. He had trials with several clubs before being offered a contract by Scottish Premier League club Celtic, which he accepted. Celtic After joining Celtic in the summer of 2006, Sheridan was promoted to the reserve team and then the first team squad during his first season at the club, a "spectacular rise" according to coach Joe McBride. He made his first team debut for Celtic in the Scottish Cup quarter-finals against Inverness Caledonian Thistle on 25 February 2007, as a 73rd-minute substitute for Mark Wilson in a 2–1 away victory. He signed a new three-year contract with the club two days later. On 20 May 2007, the final game of the season, he made his league debut against Hibernian, playing the final two minutes of a 2–1 defeat at Easter Road in place of Craig Beattie. Sheridan made his European debut on 21 October 2008, coming on as a substitute for Scott McDonald in Celtic's Champions League game against Manchester United at Old Trafford. He also started in the return game at Celtic Park on 5 November 2008, a 1–1 draw. Just four days after his European debut, Sheridan made his first league start against Hibernian, scoring the second goal of a 4–2 win. Loan moves On 2 February 2009 Sheridan signed for Motherwell on loan until the end of the season, to