Thiaw gave seven-times European champions AC Milan the lead with a header from a corner in the 12th minute.
Browsing: Bernabeu
The former Chelsea man has failed to make his mark at Bernabeu since his nine-figure move due to injuries and continues to be linked with an exit from the Spanish capital.
Benzema, 33, has become the latest player to sign a contract at the Bernabeu following extensions Thibaut Courtois, Luka Modric, Lucas Vazquez, Nacho Fernandez and Dani Carvajal in recent months.
Bale left Spurs in 2013 for the Bernabeu though struggled in recent times at the La Liga giants, frozen out by Zinedine Zidane
Los Blancos entered the La Liga clash having lost three of their last four matches in all competitions, but could not return to form in front of their own fans as the pressure was cranked up on head coach Julen Lopetegui.
Buffon was enraged by English referee Michael Oliver’s decision to award Real Madrid a stoppage-time penalty kick during the second leg at the Bernabeu.
Zinedine Zidane’s side entered the match having lost their last two league fixtures on home soil, and they fell behind to the relegation-threatened visitors in the 23rd minute of the contest.