Barnsley were held to a 0-0 draw at home to Scunthorpe United on Friday.
The result kept the Reds sixth in League One but they could fall out of the play-off places.
Barnsley – depleted badly by injuries to top-scorer Sam Winnall and others as well as three international call-ups – did not manage a shot for the first 70 minutes.
Reds' caretaker head coach Paul Heckingbottom was forced into four changes from the side that won 2-0 at Fleetwood six days earlier as Winnall was out with a minor hip problem while Callum Connolly, Ashley Fletcher and Lloyd Isgrove were all on international duty.
Aidy White made a return from injury to start at left-back while also coming back to the starting line-up was Josh Scowen as well as Harry Chapman and new signing Ivan Toney.
Scunthorpe should have taken the lead in the seventh minute when former Barnsley man Jim O'Brien squared for Luke Williams who was free totally free ten yards out but his shot was weak and saved by Adam Davies diving low to his left. O'Brien then fired just wide of the left post from the edge of the box after quarter on an hour.
Murray Wallace missed another good chance for Scunthorpe when he headed a Jamie Ness corner over the bar on 34 minutes. It was 0-0 at half-time but the Reds had been second best.
Barnsley were better in the second half and were denied twice in the seventieth minute by goalkeeper Luke Daniels who tipped over a Conor Hourihane free-kick then, after the resulting corner, produced a superb one-handed stop from a Marc Roberts header.
Very little happened in the rest of the match and the Reds had to settle for a point.
