He was red carded for dissent in the 41st minute in the game between Reims v Paris St. Germain (still on..)
Ramos holds the record for picking up the highest number of red cards in Real Madrid history (26) and the second most red carded player of all times.
All 27 red cards of Sergio Ramos and the opponents
Season
2005/06
La Liga
Real Madrid 3-3 Villarreal
2005/06
La Liga
Real Madrid 1-1 Atletico Madrid
2005/06
La Liga
Real Sociedad 2-2 Real Madrid
2005/06
La Liga
Espanyol 1-0 Real Madrid
2005/06
Champions League
Olympiacos 1-2 Real Madrid
2007/08
La Liga
Mallorca 1-1 Real Madrid
2007/08
La Liga
Sevilla 2-0 Real Madrid
2007/08
La Liga
Recreativo 2-3 Real Madrid
2008/09
La Liga
Real Madrid 4-3 Malaga
2009/10
La Liga
Atletico Madrid 2-3 Real Madrid
2010/11
La Liga
Barcelona 5-0 Real Madrid
2010/11
Champions League
Ajax 0-4 Real Madrid
2011/12
Copa del Rey
Barcelona 2-2 Real Madrid
2011/12
La Liga
Villarreal 1-1 Real Madrid
2012/13
La Liga
Real Madrid 4-0 Celta Vigo
2012/13
La Liga
Real Madrid 2-0 Rayo Vallecano
2013/14
La Liga
Osasuna 2-2 Real Madrid
2013/14
La Liga
Real Madrid 3-4 Barcelona
2013/14
Champions League
Real Madrid 4-1 Galatasaray
2015/16
La Liga
Las Palmas 1-2 Real Madrid
2015/16
La Liga
Barcelona 1-2 Real Madrid
2016/17
La Liga
Real Madrid 2-3 Barcelona
2017/18
La Liga
Deportivo 0-3 Real Madrid
2017/18
La Liga
Athletic Bilbao 0-0 Real Madrid
2018/19
La Liga
Real Madrid 1-2 Girona
2019/20
Champions League
Real Madrid 1-2 Manchester City
2021/22
Ligue 1
Lorient 1-1 PSG