Mahrez was unhappy with his second-half substitution last night.
However, Puel stated: "When a player leaves the game they are disappointed - it's not too important.
"It was hard to find Mahrez in the second half. We tried to play on the counter attacking with Demari Gray and Vardy against this team as they were playing with long kicks and winning the second balls. But it was not possible to find them in the second half."