in defense. After making four appearances, Tesselaar sustained an injury during a match against Stenhousemuir, in the first round of the Scottish League Cup, which Kilmarnock lose 2–1. Tesselaar was out for six weeks due to a hamstring injury. After two months out, Tesselaar made his return, where he came on for James Dayton in the last minutes, as they beat Celtic, to give their first win at Celtic Park for the first time since 1955. He made his first start since being injured, as Kilmarnock beat Ross County 3–0 on 9 November 2012. He finished his first season at the club, making twenty-six appearances. In his second season, Tesselaar continues to remain in the left-back position until he came off in the sixth minutes in the first half, in a 1–1 draw against Partick Thistle on 21 September 2013. During the season, Tesselaar broke his nose in four occasion that he might wear a protective mask for the rest of his career. In a match against Hearts on 8 March 2014, Tesselaar made national headlines in the Netherlands when he made fabulous way through the legs of Jordan McGhee and then he gave the ball which was scored by Michael Gardyne, in a 4–2 victory. At the end of the 2013–14 season, Tesselaar was offered a new contract by the club. While negotiating a new contract, Tesselaar faced uncertainty over his future: "I'm open to everything. A new club is a nice adventure." However, Tesselaar left Kilmarnock in late June. Return to St Mirren Tesselaar re-joined St Mirren on a one-year deal, after leaving Kilmarnock at the end of season 2013–14. The Dutchman previously played for the Saints during season 2011–12 in the Scottish Premier League, making 33 league appearances. Tesselaar's second spell at St Mirren came in the opening game of the season, playing as a left-back, in a 1-0 loss against Motherwell. Tesselaar made his 50th appearance, in a 2-1 loss against Celtic before coming off by half time, due to an injury. Tesselaar then suffered a knee injury that kept him out before scoring and assisting on his return, in a 2-2 draw against Ross County on 25 October 2014. However, Tesselaar came under pressure from St Mirren supporters after an interview with Voetbal International, claiming about negativity of the town of Paisley. Tesselaar later denied those statement he made in the Voetbal International. Nevertheless, Tesselaar