Key takeaways: 

• Liverpool joined Manchester United supporters in a minute of clapping to support Ronaldo and his family.
• Manchester United striker Cristiano Ronaldo says he will never forget the "respect and compassion" offered by the Anfield crowd following the demise of his baby boy.

Manchester United and Liverpool supporters united in a fan-led minute of clapping to support Ronaldo and his family during Tuesday's league match.

After seven minutes, Liverpool fans sang their club's anthem, 'You'll Never Walk Alone' - Ronaldo's shirt number.

Ronaldo was absent from the 4-0 loss.

"My family and I will never forget this instant of respect and compassion," Ronaldo captioned on Instagram.

"One world… One sport… One global family… Thanks, Anfield."

Ronaldo and his wife Georgina Rodriguez revealed the death of their baby boy on Monday, stating it is the "most significant pain that any parents can feel."

The 37-year-old and Rodriguez, 28, we're expecting twins.

Their baby girl survived - and they said her birth "offers us the power to live this moment with some expectancy and happiness."

Both United and Liverpool players wore black armbands as a mark of regard to Ronaldo and his family.