The former Chelsea defender scored the only goal of the game as Los Blancos got the better of Mallorca at the Bernabeu on Wednesday night.
After heading the ball past Mallorca goalkeeper Predrag Rajkovic, Rudiger ran away to celebrate and was promptly congratulated by his teammates.
However, the goal was slightly painful work for Rudiger as he was slapped by a number of his Real Madrid teammates, including Bellingham.
When asked about being slapped by Bellingham, Vinicius Jr and Joselu, Rudiger responded: "It's not a problem for me. The next game Brahim, Bellingham or Vini will score and I will get them back."
It was a quiet evening for Bellingham in what was his and Real Madrid's first match back since the winter break.
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Bellingham was unable to add to the 17 goals he's already scored for Real Madrid since completing his big-money move in the summer, however, Ancelotti defended the England star.
Ancelotti said post-match: "It shouldn't be surprising that Jude Bellingham didn't score… just remember that he's a midfielder.
"The fact that he scores goals is an added bonus".
The result means Real Madrid maintain their place at the top of LaLiga, although they're level on points with early-season pace-setters Girona, who beat Atletico Madrid 4-3 on the same night.