Kylian Mbappe breaks Messi's 11-year-old Champions League record. Real Madrid striker Kylian Mbappé made his 100th UEFA Champions League appearance during Real Madrid's 4-3 victory against AS Roma, becoming the youngest player to achieve the feat. At 27 years and 298 days, Mbappe surpassed Messi, who was 28 years and 84 days old when he reached the milestone in September 2015.