For the teams such as Manchester City, Aston Villa and Chelsea i am very confident these teams will be able to overcomes their opponents but for Leicester although their opponent is only the team from League One division but i highly doubt they can win because their performance is really unstable in Premier league even i was thinking possibility this match will be ended draw at the normal time
All of them should able to win including Leicester City.
Walsall isn't playing in League One instead they playing in League Two, it's fourth division while Leicester City in first division. Even Leicester City's performance is terrible in Premier League, but they were strong in Championship which mean the gap between each division is really far.
The only way they can draw if Leicester City lost many important players, but all of them are available.