Having seen off Everton 2-1 at Goodison Park in the previous round the Foxes are 17/10 to chalk up another victory on their travels on Friday night and 43/20 to earn a replay back at King Power Stadium.
That victory over the Toffees earlier this month saw all the goals arrive in the second half so Draw/Leicester City looks a smart bet at 5/1 as does two or more second half goals at 19/4.
The Foxes have enjoyed their trips to Derby having lost just one of their last nine and having won their last three.
Leicester City ran out 1-0 winners on their last trip there and a repeat of that scoreline is currently 15/2 with official betting partners BetStars.
Both sides won 2-1 away from home in the third round so odds of over 2.5 goals at 6/5 may appeal along with Leicester City to win and both teams to score at 9/2.
Demarai Gray played for 90 minutes against Southampton last weekend and the England Under-21s international will be keen to impress in front of the BBC1 audience. The former Birmingham wideman is 8/1 to open the scoring and 14/5 to score anytime.
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