The Reds defender's attacking contributions have earned him a nickname of 'Shawberto Carlos' from some fans, and the man whose monicker that is based on joined in the admiration on social media following the 4-0 victory in Rome.
Roberto Carlos, who scored 11 goals in 125 games for Brazil and helped them to win the 2002 World Cup and two Copa Americas, replied to Luke's Instagram post with eight applause emojis - a surefire sign that he approved of the United player's performance.
Shaw himself had simply commented "What a night! All eyes on the semis" but naturally he expanded on that when interviewed by ITV reporter Gabriel Clarke.