Ipswich Town and Coventry City face a replay after Callum O’Hare’s late equaliser at St Andrew’s.
The Blues needed a last-gasp Alan Judge goal to reach the second round, with the Irishman striking in stoppage time of their replay with Lincoln City.
Their reward was an away tie at Coventry, who of course are playing in Birmingham this season at St Andrew's.
Lambert made significant changes in the first round, switching his entire outfield for the first staging of the contest, with changes likely again.
Victory will take Ipswich through to round two, where the 44 teams in the Premier League and Championship enter the competition.
Ipswich are back at Coventry next weekend for a league game against the Sky Blues.
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