Kelechi Iheanacho and Wilfred Ndidi were in action for Leicester who held Brentford to a 1-1 draw away in the Premier League on Saturday.
Iheanacho came on in the 90th minute for James Maddison and Ndidi came off with 15 minutes left.
Frank Onyeka did not feature for Brentford as he was an unused substitute.
Going into the game Leicester had lost five consecutive games.
Matthias Jensen gave Brentford the lead on 32 minutes before Harvey Barnes equalised for Leicester in the 52nd minute.
The result saw Leicester now occupy 16th on 25 points and are just one point above the relegation zone.
At Saint Mary’s Paul Onuachu was benched for 90 minutes in Southampton’s 3-3 draw against Tottenham Hotspur.
His Nigerian teammate Joe Aribo was not listed in the match day squad.
A 93rd minute penalty by James Ward-Prowse earned Southampton a share of the spoils.
Southampton are still rooted bottom in the league table on 23 points after 28 games played.
Other results saw Leeds beat Wolves 4-2 and Aston Villa hammered Bournemouth 3-0.