Andy Williams scored a 95th-minute penalty against Stockport County to earn Walsall an FA Cup fourth-round tie at home to Leicester City.
Paddy Madden's precise strike looked to have earned the hosts a replay two minutes from the end of normal time.
Madden then conceded a spot-kick for a foul on Liam Kinsella, allowing Williams to fire in the winner.
Danny Johnson's fierce second-half shot went through...