Leeds needed a late equaliser to avoid an upset and draw 2-all at Cardiff in the FA Cup third round.
Their Championship opponents took a 2-nil lead in the first-half - but couldn't hold on after being reduced to 10-men late in the game.
Bristol City and Swansea will also need a replay after a 1-all draw.
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Stevenage are looking to cause an upset at Aston Villa this afternoon, while Manchester City are taking on Chelsea in an all-Premier League clash.
Elsewhere, Derby beat Barnsley 3-nil, Blackburn won 1-nil at Norwich, Stoke got past Hartlepool 3-nil and Walsall claimed a 2-1 victory over Stockport.
