- Werner reaches 100 Bundesliga appearances aged 20 years and 203 days.
- Max Meyer also made milestone as fourth-youngest on Matchday 5.
- Werner remains youngest scorer of a Bundesliga brace.
The 20-year-old beat the record previously held by Julian Draxler by making his own 100th German top-flight appearance at the age of 20 years and 203 days. Earlier on Matchday 5, Max Meyer became the fourth-youngest to a century with FC Schalke 04, aged 21 years and seven days.
Werner made his Bundesliga debut on 17 August 2013 in VfB Stuttgart's 1-0 defeat to Bayer 04 Leverkusen, replacing Gotoku Sakai in the 76th minute, while his first goal came a month later against Eintracht Frankfurt - making him the Swabian club's youngest ever goalscorer and third-youngest in the Bundesliga outright, behind Nuri Sahin and Draxler.
On 10 November, he scored his first brace in a 3-1 win over SC Freiburg, becoming the youngest player in Bundesliga history to score two goals in a single game - something he repeated in only his third appearance for Leipzig, whom he joined in the summer, on Matchday 3.
Watch: Werner reacts to becoming the youngest ever player to reach the 100-game milestone:
Winner of the prestigious Fritz Walter medal for excellence in the under-17 (2013) and under-19 (2015) categories, Werner has represented his country at each of those levels in European Championships and is on course to play for Germany at the UEFA European Under-21 Championship in Poland next summer, with many more Bundesliga appearances sure to be his by the time that comes around.