Kristoffer Tønnessen is an attacking left-back for IK Start, known for his energy and willingness to join the forward play. The 28-year-old Norwegian has become an important figure for the Kristiansand-based club, with his market value indicative of his contributions. Tønnessen's career has been spent entirely in Norway, where his pace and stamina on the left flank have been assets for both defensive cover and offensive support. His ability to deliver crosses and overlap consistently makes him a valuable outlet in attack. He has been instrumental in Start's campaigns, often contributing assists and maintaining defensive solidity. While yet to receive senior national team recognition, his performances at the club level have not gone unnoticed. Tønnessen embodies the modern full-back—athletic, technically sound, and crucial to his team's tactical shape on both sides of the ball.