Midfielder Neil Danns remains an injury doubt for Crystal Palace.He has been struggling with a back problem which has forced him to miss the last two games, and he looks unlikely to return on Tuesday. [LNB]Bristol City manager Gary Johnson could make changes, but he is unable to call upon forward Evander Sno (back) and midfielder Marvin Elliott (knee). [LNB]Brian Wilson, Jamie McCombe and Jamie McAllister also continue to struggle with their respective injury problems. [LNB][LNB] MATCH PREVIEW Bristol City's hugely controversial home win against Palace in August means they could now complete a league double over the Eagles for the first time in 55 years. [LNB]Palace's trip to Ashton Gate ended in acrimony after they were infamously denied a perfectly good goal when Freddie Sears' effort bounced out from the back of the net. [LNB]They will be looking to avenge that defeat and continue their momentum having beaten Sheffield United on Saturday in Paul Hart's first match as Eagles boss. It was Palace's first win in seven games. [LNB]Hart's side are only above the relegation zone on goal difference but can take encouragement from that victory, while City will be looking to atone for a dismal 5-2 defeat at home to Doncaster and are yet to win away against a bottom-half team this season. [LNB][LNB] MATCH FACTS Head-to-head[LNB]• Palace have won their last four home league games against Bristol City. [LNB] Have your say on this match • The Robins have not won at Selhurst Park since December 1961. [LNB]Crystal Palace[LNB]• Palace have scored 36 Championship goals this season. Only Swansea (30) and Plymouth (33) have netted fewer. [LNB]• The Eagles need another four goals to total 5,000 in their league history. [LNB]Bristol City[LNB]• City have won only one of their last 10 matches. [LNB]• Another loss would be the 100th away league defeat of boss Gary Johnson's managerial career. [LNB]• Like Palace, the Robins have not lost a league game this season in which they have scored first. [LNB]• Striker Nicky Maynard has had more shots on target than any other player in the Championship (52). [LNB][LNB] MOST RECENT MEETING Bristol City 1-0 Crystal Palace (16 August 2009) [LNB]Bristol City scorer: Maynard 89.