Reading wasted the opportunity to gain ground on Wolves and Birmingham at the top of the Coca-Cola Championship by only drawing 0-0 at Coventry.
With the top two playing each other on Monday in a West Midlands derby, third-placed Reading had a chance to close the gap between themselves and the automatic promotion places to one point with a game in hand.
But they were arguably the poorer side against Chris Coleman's men and could even count themselves lucky not to be heading south empty-handed.
Sheffield United's late push for automatic promotion was further strengthened by a 2-0 win over Ipswich at Bramall Lane.
The Blades went ahead in the 19th minute through Greg Halford before doubling their advantage within half an hour through Darius Henderson. An Ipswich fightback failed to materialise after the break as United held on to go level on points with Reading.
Fifth-placed Burnley could not keep pace with those above them as Derby scored a late equaliser to draw 1-1 at Pride Park.
Burnley went in front against the run of play when Chris Eagles' cross was not cleared and Chris McCann fired his side in front shortly before the hour mark, but Paul Connolly headed a leveller two minutes into added time to take a point for the Rams.
Doomed Charlton did their bit to drag crisis-hit Southampton down with them as they won 3-2 at St Mary's.
Jonjo Shelvey poured cold water on the Southampton fans' rallying reception by putting his side ahead after only seven minutes. Saints roared back, however, with David McGoldrick levelling in the 17th minute.
Tresor Kandol missed a penalty to give Southampton hope but Therry Racon (60) and Nick Bailey (69) secured the win and rendered Bradley Wright-Phillips' strike a mere consolation.
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