The 19-year-old left back barely put a foot wrong as he was drafted in to face the Blades as the Foxes won 2-0 and his manager said the youngster repaid his faith by displaying composure and calmness.
Thomas was solid at the back but also impressive going forward as he provided an assist to Ayoze Perez for the first goal of the game.
Brendan Rodgers revealed the youngster was given a round of applause by his team-mates
"He got a round of applause from all the lads" ud83dudc4f
Brendan Rodgers was thrilled with his side to get back on track - especially young debutante Luke Thomas