Derby are likely to have Gareth Roberts (shin) and Jake Buxton back from injury and illness respectively.James Bailey and Dean Leacock are out along with keeper Stephen Bywater. [LNB]Marlon Harewood is set for his Barnsley debut after joining on loan from Blackpool, and Jay McEveley may return to the squad following a knee injury. [LNB]Jason Shackell could miss out because of a facial injury, while Bobby Hassell (hamstring), Jacob Mellis (ankle) and Nathan Doyle (calf) are doubts. [LNB][LNB] MATCH PREVIEW Derby's season reached another low point when they were beaten 3-1 at home by fellow strugglers Doncaster in midweek, prompting some Rams fans to turn on manager Nigel Clough. [LNB]That result was a bitter blow and followed the vital win at Sheffield United - Derby's first victory in 11 matches and one they had hoped would signal a turning point in their fortunes. [LNB]Their home form has been awful. Clough's side have suffered five consecutive defeats at Pride Park, where they have not won since November. Another reverse on Saturday would leave them one more home loss away from equalling the club record of seven in a row. [LNB]Barnsley are also enduring a bad run. They are without a win in five matches and have won only one of their last seven. And the Tykes have failed to score in nine of their 17 away league games this season. [LNB][LNB] MATCH FACTS Head-to-head[LNB]• Derby have won 27 and Barnsley 17 of the 56 previous clashes of these clubs. [LNB]• The last two matches between them have ended in draws. [LNB]Derby[LNB]• Derby have conceded six Championship goals in injury time this season - more than any other team. [LNB]• The Rams have not scored more than one goal in any of their last 11 matches, and have failed to score at all in six of them. [LNB]• A start for Chris Porter would be the 200th of his career, and for Gareth Roberts his 500th. [LNB]Barnsley[LNB]• Barnsley have conceded 17 Championship goals in the final 15 minutes of matches this season - more than any other team. [LNB]• Nathan Doyle, who started his career at Derby, could make his 100th career start. [LNB]• Jason Shackell is hoping to make his 200th league appearance.