Coventry City are down to eleventh in the League One table after the 0-0 draw at fourth placed Gillingham.
The Sky Blues dropped another place due to Sheffield United winning 2-0 at home to third placed Walsall.
Wigan, whom the Sky Blues travel to next Saturday, now top the league after a 5-1 win at Shrewsbury Town. The Latics are ahead by a point from Burton Albion who drew 1-1 with Bury.
Bradford City are fifth after beating Scunthorope 1-0 and Millwall are sixth after drawing 0-0 away to 23rd place Colchester United, who are five points clear of the bottom side Crewe who lost 3-0 at Peterborough United.
Third from bottom Doncaster Rovers drew 2-2 at Rochdale with Oldham fourth from bottom, one point behind Fleetwood who drew 1-1 at Swindon Town.
Blackpool eased their relegation worries sllightly with a 2-0 win over Southend and Chesterfield beat Port Vale 4-2.